5 Times Evolution Did Its Best
Vložit
- čas přidán 13. 02. 2021
- Usually when you think of evolution or natural selection, you think of survival of the fittest. But sometimes, the resulting traits of evolution aren’t the most efficient solutions to the problems at hand. With the bar set to “good enough,” here are some features that arose from evolution which get the job done in strange or roundabout ways. Hosted by: Rose Bear Don't Walk.
SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtangents.org
----------
Support SciShow by becoming a patron on Patreon: / scishow
----------
Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever:
Silas Emrys, Charles Copley, Jb Taishoff, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Christopher R Boucher, Eric Jensen, LehelKovacs, Adam Brainard, Greg, Ash, Sam Lutfi, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, charles george, Alex Hackman, Chris Peters, Kevin Bealer
----------
Looking for SciShow elsewhere on the internet?
Facebook: / scishow
Twitter: / scishow
Tumblr: / scishow
Instagram: / thescishow
----------
Sources:
Photosynthesis
doi.org/10.2210/rcsb_pdb/mom_2...
doi.org/10.1199/tab.0130
doi.org/10.1042/bss0610001
doi.org/10.1098/rstb.2005.1737
www.khanacademy.org/science/b...
doi.org/10.1093/jxb/ern081
doi.org/10.1093/jexbot/53.369...
doi.org/10.1111/j.1469-8137.2...
doi.org/10.1016/j.cub.2013.04...
doi.org/10.1093/jxb/erw156
Marsupials
www.academia.edu/download/4584...
books.google.com/books?hl=en&...
doi.org/10.1111/j.1558-5646.2...
www.researchgate.net/publicat...
The RLN
www.science.org.au/curious/ea...
www.ncbi.nlm.nih.gov/books/NB...
www.ncbi.nlm.nih.gov/books/NB...
doi.org/10.4202/app.2011.0019
arxiv.org/pdf/1901.01560.pdf
Eyes
evolution.berkeley.edu/evolib...
www.pbs.org/wgbh/evolution/ch...
dx.doi.org/10.1038%2Fnrn2283
doi.org/10.1007/s12052-008-00...
doi.org/10.1038/eye.2017.226
Bipedalism
www.sciencemag.org/news/2013/...
doi.org/10.3390/biomimetics40...
doi.org/10.1038/46965
journals.co.za/doi/10.10520/A...
doi.org/10.1002/ajpa.10058
jaoa.org/aoa/content_public/j...
Image Sources:
www.istockphoto.com/photo/hum...
www.istockphoto.com/photo/sma...
www.istockphoto.com/photo/clo...
www.istockphoto.com/photo/rip...
www.istockphoto.com/photo/a-m...
www.istockphoto.com/photo/kan...
www.istockphoto.com/photo/koa...
www.istockphoto.com/photo/pre...
www.istockphoto.com/photo/wes...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
www.istockphoto.com/photo/mor...
commons.wikimedia.org/wiki/Fi...
www.istockphoto.com/photo/hum...
en.wikipedia.org/wiki/File:Ev...
www.istockphoto.com/photo/com...
www.istockphoto.com/photo/pha...
www.eurekalert.org/multimedia...
commons.wikimedia.org/wiki/Fi...
www.istockphoto.com/photo/run...
commons.wikimedia.org/wiki/Fi...
www.istockphoto.com/photo/3d-...
#SciShow
"Evolution is not efficient, it's just sufficient"
Well said
I don't think so. It implies a purpose in evolution that just isn't there
@@bjs301 There is no purpose in evolution, it just, happens.
@@bjs301 no it doesn't...
@@MuscarV2 Of course it does.
@@budmeister No purpose that you know of, anyway.
The spine was designed like a clothesline, but humans are using it like a flagpole.
Thanks a lot, walking upright!
@@OtakuUnitedStudio (in Homer voice) "stupid hands, with their opposable thumbs ..."
Reject bipedalism
Return to fishe
@Mimi Mimi *fibsh
Which is why we have back problems.
Honorable mention to human sinuses draining from the top, instead of working *with* gravity. Which is why we get colds and stuffy noses and other animals basically never do.
This might have to do with the fact that human (and other apes) have their face on the front of their head, but are descended from species that have their faces on the end of their heads (all 4 legged animals). Think about it: A dog or cat looks ahead, even though they are on all fours. A human in that position has their face staring straight down. To test that theory, we'd need to find out if other forward facing great apes have sinus issues.
@@nixon2tube Orangutans and gibbons can't get sinus headaches, for a start, because they lack sinus cavities behind the top of the face like we've got.
I suspect the problem is more that the human face is smooshed very flat compared to other mammals and even other apes, so there isn't a lot of room in the skull around and behind the nose.
@@HeadsFullOfEyeballs maybe changing in diet, reduce need for muscle jaw, the reduce the size of said jaw, our eyesight kind good for safety scout, futher reduce nose size, and at the same time our brain grow bigger... i mean we survive by depending more on complex social, it make sense we have reduce some of our detection senses. Our eye still rock though. Imagine if we need to see contrast better, might has turn in eyes like those octopus or bee..
Mine are so messed up. Reading this as they’re making me miserable.
How we are all enjoying all this "intelligent" design.
As a science teacher, I have been repeating "Evolution Has To Work With What it Has" and "It's Not About Survival of the Best, It's About Survival of the Good Enough" ad nauseam in my classes for about a decade and a half now, so to hear these phrases almost verbatim in a SciShow episode has got me like :D :D :D
I think nature needs to tear it all down and start again with the aim of getting it right next time.
@@catherinebirch2399 that’s what mass extinctions are for 😅
I'm partial to "Survival of the barely adequate".
@@catherinebirch2399 we might be in the sixth extinction right now
I see. I would reason this out when they ask me why I only do barely enough to pass on school.
"Not efficient, just sufficient." If original, well done. If not, thank you for introducing it to me.
No google hits. I think it's original!
Thanks! It's something a professor once said just in passing years ago, but it stuck with me ever since.
@@oliharris1953 Wow, thank you so much! It's been tough to find time, but I'm hoping to have another short one out in the next week or so...
@@WitheeLabs why this dude saying thanks? Are you the presenter/scriptwriter for the show?
@@DragonFanngg according to the credits, yeah he’s the scriptwriter
If you have billions of years and no firm deadlines, it's a successful automated process.
*laughs in meteorite*
*guffaws in expanding sun*
*Smirks in universal heat death*
No matter where the process ends, we can call it a full success anyways
@@waofactor.graphic We don't have free will. We just think we have, and its more advantageous for us the truly believe we are in control when we are not. Beep Boop.
@@torolvro59 Life in a deterministic universe really do be like that. Get rekt, philosophical idealism.
It's not survival of the fittest, but rather survival of the not completely unviable.
Until the meta changes and you became unviable
Love this!! says it all in a nutshell or maybe a tiny egg or maybe cocoon LOL 🌷🌱🦋
As long as you don't due immediately, evolution considers it a success.
@@TheAvsouto I sense a tierzoo fan right here
Even if you are basically unviable, as long as you are a panda or a koala
As the famous Greek philosopher Mediocretes once said: "eh, good enough".
Torva Hi. Good one! It reminds me of the late, great Terry Pratchett's take on Greek philosophers:
"His philosophy was a mixture of three famous schools -- the Cynics, the Stoics and the Epicureans -- and summed up all three of them in his famous phrase, 'You can't trust any bugger further than you can throw him, and there's nothing you can do about it, so let's have a drink.” From "Small Gods"
@@alanthompson8515 I remember that! I can't remember which character said it, but yeah lol
Love it!! must remember him!! LOL 😏🌷
@@kdarkwynde Didactylos the Ephebian - "It's a rum old world all right. But you've got to laugh, haven't you? Nil Illegitimo Carborundum is what I say. The experts don't know everything. Still, where would we be if we were all the same?"
The other philosophers "felt he wasn't philosopher material. He didn't bath often enough or, to put it another way, at all".
It just works ~ Todd Howard
Breathing hole being pretty much the same as the eating hole? It'll do.
And we can be thankful it's not also the waste exit hole.
@@apparentlyretrograde don't you want to live that slug life?
@@apparentlyretrograde Unless you are a planarian. In fact, if you are a planarian you really are straight out of luck because you inherit exactly _one_ orifice for everything including reproduction.
Technically we have separate eating and breathing holes. Someone just wasn't paying attention when digging them so they pass straight through each other. The best solution nature came up with was a stop-light to just close one path completely if something's going the other way. This stop-light is also broken and things just go past it anyways.
@@angeldude101 Yep the stop-light we broken in order to develop vocalizations because evolution.
As a best example of how inefficient this was as soon as birds got a better alternative there Larynx reverted back to its original function of managing that stoplight
"Survive wall banging"
"Parkour their way up their body"
This is only the most cutting edge academic jargon and I'm SO here for it 🤣👍🏼♥️
I'm glad I'm not the only one who had to stop and appreciate that language!
This czcams.com/channels/9EWaiIwJGBD2mnsCg2Pt4Q.html
Did you forget "free solo their way to their first meal or die"
It's like the video was made for a middle school audience
Had to give a "like" to this comment simply for the beautiful sarcasm
"C4 as the name suggests involves-"
Me: "EXPLOSIVES!"
"-a molecule with 4 carbons."
Me: D:
I too was hoping for "molecules go boom boom"
*in deadpan voice, wearing an off the rack suit, flashing a badge*
Hi, I’m FBI Special Agent....
Ha, she got us bamboozled!
Now I have to think of "C4 is angry clay"
"When in doubt: c4!" - Jamie Hyneman.
Glad to know that "if it compiles, ship it" has a rich history.
I hate you and love you at the same time. :'D
Life : "Hey evolution, we could make some improvements here"
Evolution : "I'll get to it... Maybe... Sometimes...."
Life: "Maybe sometimes?"
Evolution : "Yup.... Eventually maybe sometimes..."
It will circle back to it. (c) Jen
Perfect!! thanks LOL 🌷
Evolution: I am a species, but I can change... If I have to... I guess.
We are evolving at a slower rate cause we are exposed to less harsh conditions than our ancestors and have developed technology which makes our daily lives convenient but we depend on way too much.
As an evolutionary biologist I have to say that this is made and explained very, very well. Good job!
goodto know - what a fascinating life you have :) 🌷
Hey! I know I'm kinda late, could you please tell me how you became an evolutionary biologist cuz I wanna become one too!
Hello! Ik it's been a while since u commented, but i really wanna become a biologist too and I would love to know what do you do for a living in a daily basis, how did U become a biologist, and all of those fun things! I hope it's ok 😊
Evolution, the quintessential C Student
C-
Haha I already loved this comment but then the reply made it 10x better
If Evolution takes the class enough times it'll get an A. Hopefully the curriculum doesn't change in the meantime.
🌚 As a C programmer, I can relate.
@@KesSharann so, would this "class" be the certain frequency and patterns mutations occur?
I've been saying this stuff for years - evolution doesn't "decide" anything. Everything is just a series of accidental mutations that happened to be beneficial enough to keep a species going.
It's the world's biggest most average gambling addiction.
@@urbandesitv3529 "an instruction manual"?
That's overstating it a little, and has implications. It all works together, and is just a chemical expression.
@@urbandesitv3529 Glad you're amused, but aren't you just being a bit lazy? Once you invoke 'God' you are done thinking.
@@urbandesitv3529 wait, what part of the original comment are you saying is wrong? They didn't mention anything about evolution without DNA or suggest pokemon and transformers could happen in real life.
@@urbandesitv3529
Of course DNA is a handbook. But it only tells the body how to form "now." Then the book gets its content changed just a little bit because of the surrounding environment resulting in a mutation. If that mutation is getting the work done, it'll get passed on. Nothing was there in the book beforehand. It observes and changes.
Evolution is a random number generator, trying to solve takeshis castle
Trying to win the lottery
Fish plays Pokémon.
They certainly couldn’t finish his Challenge
Evolution in a nutshell: Good enough to breed children who breed children who . . .
Technically, even this corrected version is still slightly incorrect. Evolution is good enough so that part of your genes are passed down to descendants, but they don't need to be your own children. For example if you have zero children but your brother/sister has ten, a big part of your shared genes are passed down even though you never had offsprings. This kind of evolution interpretation explains things such a homosexuality: if your genes give a competitive advantage to your siblings or provides additional caretakers for their children, it doesn't matter whether you have children of your own or not. This is also a BIG part of the reason we are hardwired to protect our families, including our siblings' children.
@@TheDarkever yeah it's called the selfish gene or gene-centered view of evolution, where a gene cares more about copying itself in a population rather than helping his carrier to pass on his genes. Who knows it may be the case for homosexuals, as it may lower the chance of the passing on of someone's genes but it increases the chances of those who have same genes like his siblings to pass on their genes by lowering the competition for them. Here the gene is being selfish because it prevents its carrier to pass on directly his genes by promoting others that carrie the same gene to have more kids, and at the end of the day the gene gets still to be passed on even if it may result in some of its carriers to be homosexual.
@@TheDarkever whoah there cowboy! The reason you and your siblings share genes is because you have parents in common that pass on those genes not the other way around, non of my genes are getting passed on to my nephews or nieces, other thing lots of other animals are not tribal, some dont care about there siblings at all, some animal have tribal instincts as a survival mechanism not we share genes, in fact many beings often pair up with other of no genetic relation, just like a fox would help a badger hunt, or birds cleaning leaches off hippos for food, its part of living in an ecosystem
Actually its more like good enough to survive long enough to breed at least once to have children and maybe even survive to maybe breed one more time and maybe increase the odds, but dont bet on it
@@lazywonderer4669 yeah what you mention has nothing to do what you're responding to
As Todd Howard would say:
"It Just Works".
Or more accurately "It works, but only just."
Most balanced and not op build ever
Still waiting for the fan-made mod to fix it.
"It is not efficient, just sufficient"
Every Fallout game since New Vegas.
_"It just works! It just works! Little lies, stunning shows!_
_People buy - money flows, it just works!"_
As an engineer said, " It works, why fix it?"
Mechanic's have a similar saying " if it ain't broke, don't fix."
Unless we turn into crabs, I'm not interested
Give it time. :)
Carcinisation is inevitable. Do not resist, you will be crab.
everything ends up evolving into crabs in a way or another.
We kind of did undergo something similar to carcinization when our tails shrunk and disappeared leaving us with only a tiny tucked-under sacrum, similar to a crab's pleon
@@roseannelajara8659 it has begun
*BOLD* *PRINT* *GIVETH* fine print taketh away. Yes cephalopods' eyes are more efficient (and make more sense) than vertebrates', but their esophagus goes directly through their brain.
Yep There isn't basically any one thing that is a unanimous best as for every success there is another "screw up" limitation brought by the lack of a direction. The other big drawback for cephalopods is the whole generally dying after you mate thing. Kind of limits how far intelligence can go as knowledge can't easily be propagated onto future generations.
I imagine that when/if we ever get a sufficient understanding to start doing designer organisms it will end up having to be largely piecemeal/ from scratch since you will want to make sure it not only works well but has good built in redundancy and thus is way far off in the distant future if we somehow manage to not wipe ourselves out in the next few centuries. (A big *if* given how things are unfolding).
Aren't they colorblind?
@@charlidog2 yes they are
@@AaronSoul725 Wait so some of the absolute best color-changers in the world are colorblind?
@@N20Joe Their skin doesn’t just change color, it changes the polarization of reflected light. Our eyes can’t detect light polarization, but theirs can. Apparently we think this may be more useful than color vision under water.
I like to think RuBisCo stands for Rubidium-Bismuth-Carbon Monoxide.
Or Russian Biscuit Company.
As a person who used to be a sales rep for the National Biscuit Company, I applaud this joke.
Ribulose-1,5-Bisphosphate Carboxylase Oxygenase
@@bingbonghafu Thanks, nerd ... jk
I remember hearing the guy who named it named after a biscuit brand
@@secularmonk5176 I just searched it up lol
Throwing stuff against the wall to see what sticks and good enough for the moment is basically how engineering works also.
Evolution actually chooses "good enough" over perfect, I think. Perfection is inflexible. "Good enough" makes you more flexible. Whatever is perfect for the way things are now will die off when things change. So evolution not only allows the merely sufficient, it prefers it.
Evolution does not 'choose' anything, nor does evolution 'allow' anything, nor does evolution 'prefer' anything...
Three for three, hat trick.
@@tlrlml Thanks, Professor
@@tlrlml communication is a tricky process. It requires all interlocutors to read the context. You, my friend, needs to read the context
@@entropy8634 I understand the context perfectly. May I suggest you reconsider your objection.
@@tlrlml oh, then I reconsider.
Some people would be better off having more distance between their brain and their voice box.
LMAOOOOOO
which people? i think this joke is going over my head plz explain
@@IndustrialParrot2816 probably me
Especially going through the heart first, metaphorically speaking.
I’ve actually heard a creationist argue that the RLN’s unnecessary detour is more efficient or more “intelligently designed” than a more direct route. The mental gymnastics is impressive.
Their lack of logic is a mistake akin to the RLN. Think about it that way. This religion arose long long before we knew any of this stuff. Maybe it had a use at one time. But it has stuck around even though it now just gets in the way. What can do? They still have more political power than those who see what it is. But as an institution, they may yet have valuable qualities we can learn from.
@@NickRoman Ty, similarity (RLN and religion) noted :)
10 cm vs 4 m
@RickySTT
: did they explain why?
@@Vagabond-Cosmique If they did, it didn’t make enough of an impression for me to remember.
You missed a perfect opportunity to mention that RuBisCO is the most common enzyme in the world!
Aah! The good ol' Russian Biscuit Company.
this channel is an absolute breath of fresh air.
Last time I was this early, C4 photosynthesis wasn't a thing.
Ah you smirky françaises.
This is the sort of video that makes me believe in Intelligent Design just out of a desire for someone to blame for all this bad engineering.
Lol @ the mental image of creationism with a team of overworked, underpaid, intern/temp-dominated designers and programmers 😂
Lol
XD
“Heaven’s Design Team” anime: You called?
@@UGNAvalon How? How did I know this would be here? XD
I felt my brain getting smarter.
I felt it.
Your brain gets smart but your head gets dumb
Also, one thing seemingly being better than something else might have some other upsides you arent seeing!
I remember reading some more in depth tests and theories on the photosynthesizers, and I remember some findings about the less efficient pathways being more robust/resistant to some conditions.
In other words the more cobbled together something is the more easily it can be reworked into something else thanks to the redundant parts Basically Evolution's modus operandi
that's right -i remember stuff like that. :) 🌷
Very good point. Evaluating evolution only on EFFICIENCY kind of clouds how we should evaluate evaluation on resiliency.
Evolution: doin' us all dirty for 3.77 billion years
Like our stimulus checks
Doing us indifferent is more like it.
At least it didn't make us into a leaf. Those poor katydids...
@@animalmother5091 Except those are not sufficient...
No proof at all
Yeah, our cheap meat suits are inefficiently designed, very difficult to maintain, and damn near impossible to repair effectively.
That last one is really the big problem. But, imagine what a human body designed with manual maintenance in mind would be like. An access hatch into your skull would probably not end well.
It only took collective effort of billions of the 'cheap meat suits' for millions of years yet we are not even close to designing a machine that could reproduce more of itself, dance to music for kicks etc. ALL by consuming food and water. Your 'cheap suit' has overcome immense challenges and you need to show some respect.
Human meat suits are deathworlders compared to horses. Margaret Mead said that the sign of human civilization was a broken and healed femur. What she meant was that most human cultures are civilized. Healed femurs are not uncommon and go back thousands of years.
A horse would have died. Humans are good regenerators because our social behavior creates an environment where strong regenerators are helped to survive. If we simply abandoned the injured in every case, the strong would be favored no more than the weak, and we would become weak. Instead elder mother who broke her leg throwing coals at the wolves recovered, bore the child she had recently become pregnant with, and lived on to assist her daughters and help her sons assist their nieces and nephews.
And note here there's no fatherhood. Matrilineal kinship only. Uncles are male caregivers, not "fathers". Makes genetic sense. A man knows his sister is his sister, but mama's baby, papa's maybe. To the extent that there are any patriarchial genes or any innate "pair bonding" behavior, these are a result of human evolution over the last ten thousand years.
Who is “our” in your text? In other words, do you assume that “you” are a different thing from “cheap meat”?
Do you realize your comment implies your belief in a soul or immaterial spirit?
@@sebastienh1100 or it implies that he considers the central nervous system not to be a part of the “cheap meat suits”, which is the rest of the body systems.
WOW! One of the best SciShow videos in a while! Love this host! Never seen her before, but she's good at keeping my attention! More content about the silliness and randomness of evolution winging it since day one, please! I can never have too much of this stuff!
The advantage of marsupials is they don’t have to make a nest for their young and leave them while looking for food. I would think that is a tremendous evolutionary advantage.
Not the pouch, the tremendously underdeveloped young born at weeks of gestation and having to climb from the birth canal to the mother’s pouch, find a teat and latch on.
What is surprising is that an underdeveloped young born knows how to climb to the pouch.
But, in other mammals, the baby stays inside until it's time to come out and walk around. Horses can walk within minutes of birth rather than a year like humans. And kangaroos, I don't know.
@@NickRoman Kangaroos are marsupials too
wow - what a great thought! that is so true! sometimes we regular people have the greatest ideas!! :) 🌷🦘🐼🐨
Evolution is basically "remembering on sunday your assignment due next monday"
The presenter is an incredibly accomplished Salish/Kootenay scientist who received an award from the American Indian Graduate Center. I just looked her up and read more about the research she's doing. Fascinating work.
Evolution= frankenstein all that matters is "it alive! It’s alive!"
LOL- perfect!! :) 🌱🦋
The cover: Become goat
It's an octopus
Thought it was a squirrel? 🐿
thats a snake
Detroit become goat
Snaketopus
As a biomedical scientist, I really enjoyed the video and this gave me some motivation for my next week in the lab
I always feel like it's less that advantageous traits are selected for, and more like increasingly less disadvantageous ones.
sans from undertale
Pretty much. What doesn't kill you makes you stronger, y'know.
I personally disagree, to me that implies minor inconvenience could be chopped
Correction, increasingly less disadvantageous traits, until it's just good enough.
sans from undertale
I literally had this discussion with my family an hour ago. The human pelvis is hardly fit for birth but they didn't believe me because it's too violent a statement.
Why?
Cephalopod eyes are a good design if the duration of a lifetime is short. Photoreceptor cells continuously renew their pigmented photoreceptive membranes, shedding the old membranes at the end of the cell. In vertebrates this shedding occurs behind the retina, which builds up pigment there and reduces internal reflections of light. In cephalopods, however, that shedding occurs in front of the retina, into the vitreous humour, leading to the accumulation of old pigment inside the eyeball, which eventually interferes with vision if the creature lives long enough. Also, the retina of vertebrates include "light pipe" cells that help the incoming light slip past the neurons and nerve fibres, so the neural network interference with vision isn't too severe. Yes, cephalopods don't have a "blind spot" where the optic nerve exits from the eyeball, but vertebrate blind spots are offset from central vision, so we are rarely aware of this deficiency.
evolution happens due to immediate needs, not future planning.
Wow you're so accurate.....here you go...your daily dose of validation.
so we will need to start breathing CO2 and CO in the far future :D
kinda like my life after high school,
nop I'm also not doing great
Creature: "is this a feature or a bug?"
Evolution: "yes"
I can attest to problem with the left recurrent laryngeal nerve being like that. I had an accident that injured my aorta and while the docs were fixing that, the nerve got severed and now my left vocal chord is paralyzed.
Now you know why they call what they do a “practice”!
@@scottydu81 Dude that was a bit callous, my left vocal chord is paralyzed and it severely messed up my ability to speak, (I could only talk in a rasp). I had to have an additional surgery so I at least sound normal, but I lost range in my voice.
@@katsomeday1 Yes, ‘twas indeed a spicy joke. I figured you could take it.
"What kind of intelligent designer puts a waste disposal system next to a recreational facility?"
Edit: formatting
Next to the delivery room!
Good question... If you think about it, we have two business ends. But why? Theres so much room between them where basically nothing happens, at least not on the outside
You don’t *have* to tell everyone that you edited the format of this comment. Most folks wouldn’t even have noticed that it was edited at all.
.... Or worse, even combines the two?
Loved this video. Great topic idea, clear and memorable writing, and excellent hosting.
Another example might be on how the earliest life forms instinctually found a nutrient source trough consumption of other organisms, but later would come consciousness and within its complexity came traits like solidarity and empathy.
This should be a series, behavior and evolution análisis in species can tell us a lot about them and ourselves.
Loving the new presenter, and this subject has fascinated me since I was a little kid!
It would've been interesting to hear about some of the specific problems caused by bipedalism, not just "it causes aches and pains". Excellent video otherwise.
She could have compared our legs to ostriches, which are much better adapted to bipedalism. Their feet and legs are actually well suited to walking upright.
...did she just describe reproductive success in natural selection as "well-banging"? Because if I didn't mis-hear that, that's incredible xD
"Wall-banging" I think.
@@AccidentalNinja That still makes my mind go places...
Ok Harvey...wall banger
Alternative title: Evidence AGAINST intelligent design.
@@prozacgod Lol. You say "designed by committee" like it's a good thing.
@@prozacgod Lol what
@@prozacgod *Designed by The Committee of Shortcomings
You can tighten that up a bit to just "biology"
Ah, yes - the obligatory token critical thinker, putting pseudoscientific ideas in its place and defending the integrity of science. Yup, you got that in the bag, kiddo: while there is _nothing_ in nature that one can point to that can count as evidence of ID because reasons, literally _anything_ will prove evolutionary biology - rendering it nice and unfalsifiable, just like the best scientific theories are. Congratz.
This was really bloody interesting! I love this channel and watch almost every new video. But somehow for me, this was the best one yet! 🤷♂️
I expect to see retinal blood vessels mentioned in this
how are they worse than the inverted retina itself?
@@jskratnyarlathotep8411 they're the same problem, they're only in front of the retina to supply with blood the nerves also in front of the retina.
the reason rubisco is so slow is because the reaction it performs is extremely unfavorably. life is lucky that its able to do it at all
I feel a disturbance... like a million creationist souls crying out in anger
"Then perish"
I am... *INEVITABLE*
Edgy.
@@amicableenmity9820 Nah, it would be edgy if they were suddenly silenced afterwards
@@Epicmonk117 This is the good ending
I should have planned my comment beforehand...
I see what you did there... and that's how it is now.
It's good enough.
Let's see if it sticks
Well done. Very much "good enough"
Well she's a good explainer.
The alternative to our problems with bipedalism is clear
return to monke
Glad someone said it before I did lol
Reject monke, return to crab!
“Far out in the uncharted backwaters of the unfashionable end of the Western spiral arm of the galaxy lies a small unregarded yellow sun. Orbiting this, at a distance of roughly ninety million miles is an utterly insignificant little blue-green planet, whose ape descended life forms are so amazingly primitive that they still think digital watches are a pretty neat idea. This planet has, or had, a problem, which was this. Most of the people living on it were unhappy for pretty much of the time. Many solutions were suggested for this problem, but most of these were largely concerned with the movements of small, green pieces of paper, which is odd, because on the whole, it wasn't the small, green pieces of paper which were unhappy. And so the problem remained, and lots of the people were mean, and most of them were miserable, even the ones with digital watches. Many were increasingly of the opinion that they'd all made a big mistake coming down from the trees in the first place, and some said that even the trees had been a bad move, and that no-one should ever have left the oceans."
@@markchapman6800 Douglas Noel Adams is where lovecraftian horror gets pythonesque
Return to monke?
or
Evolv to crab?
That intro was the best simple explanation of evolution I've ever heard. Also, horses in general.
“Not efficient, just sufficient”
looks at koalas and horses
"..at least we're not horses."
Two things. Firstly, if a species of cephalopod species evolved to live longer than a few years, they'd likely become the dominant species of this planet. Secondly, when "designing" an alien species for fiction, don't design it, use traits selected by dice roll and screened with environmental challenges.
It is a fascinating exercise to try and imagine what human-level civilization, but from cephalopod's would be like. Every part of their technology would so entirely different from ours. They are obv fantastically flexible, and live in water, so most of our concepts of ergonomics and comfort would probably be alien to them. I believe they control each sucker independently, so while the cartoons would have them pecking at a human keyboard with 8 leg tips, I imagine instead they'd lay a couple legs across a whole pad and activate each key with a sucker.
How about cephalopod Martial arts? How would their combat evolve as they need to compete with each other? Fascinating. But as you say, the limiter in the earth's case is their life span, otherwise they are incredibly intelligent and have great eyes and dexterity. But who knows in a whole other evolutionary system.
Maybe we'll find such an advanced cephalopod species beneath the ice of Europa or another similar moon/planet. How cool would that be.
People on pictures of animals: “ah, proof that god is magnificent!”
Me: “okay but our eyeballs are backwards and our throat nerve takes an unnecessary loop around our heart.”
Response: “I will pray for you, evil heathen who is destined to burn forever.”
“...k thx.””
As purely logical creatures with no emotions or ulterior motives, scientists never cling helplessly to bad ideas, nor do they have any sense of pride in their accomplishments and accolades. Purely logical beasts.
@@scottydu81 ehhh, not entirely. Some get fat too invested in their beliefs, just as much as any. Look up N-rays.
The pure ideal of science is unfortunately not always held to, unfortunately
Rose Bear Dont Walk, you are the Host with the Most.
You are owning the material, and enjoying yourself and are a pleasure to watch. Thank you for doing you! 👍 Your hosting and communication evolution is happening at warp speed
Well written. Science with just the right amount of humor thrown in and intelligently written. Refreshing, thank you Rose.
The RLN route is so we can speak from the heart.
Makes you wonder how humans, if they still exist, will look millions of years from now. Something tells me we're not going to look like we do today. I'd imagine all kinds of breeds of humanoids to be spread across the universe.
@Omar Valentini Immortality. Once they figure out how to stop aging at a certain point or get cells to regenerate instead of deteriorating, humans could live forever.
@@UnsaltedCashew38 "they" omg u is an alien
@@UnsaltedCashew38 we really don't need to stop aging...we need to become data...being data means less space is needed on earth or any planet for housing hardwares(Us) and also less problematic issues for the planet plus no consumption of any living things...and also you can no live forever and in any simulation you like and it will get easier to depart from one planet to another.... thats why e maybe don't see any other alien outside..also if we become data and get rid of climate changes and all those needs that we have to satisfy in real world,heck we may feel no need to go outside of our planet yet as we still have millions of years to think about;and time in virtual will pass differently and much slower than reality.so again another argument that why maybe there are other species on other planets but they aren't to be seen activating planets one after another
@@amirbahalegharn365 without emotions and our physiological needs, we are not human. We're no different than a toaster or cell phone. Becoming data is not the answer.
@@UnsaltedCashew38 assuming what we call ''conscience'' isn't but an oversimplification of the trillions of chemical interactions happening between a 100 billion individual neurons, we could potentially emulate emotions and will and complex thoughts, conscience if you will, in a powerful enough computer
this video its like a compilation of arguments against "smart design" (the argument that our bodies are so amazing that they couldn't had happened without a inteligent force designin it)
love it
I really like your delivery of subtle humour !
So evolution is a like a big corporation or a clumsy govt agency!😂😁 Great video! It does show that evolution is making it up on the fly as it goes.💪
Lol love this analogy/comparison
Or like me programming. Starting out with a simple goal, new things had to be added on the fly. Months and thousands of lines later: “Geh, that was dumb! But it works.”
This to me is the biggest problem with the idea of a intelligent and all powerful designer. Good video.
Same.
although an intelligent design believer could just state something like ''said imperfect is already optimal, if it could possibly be improved upon it would've been already, the designer itself is perfect'' or maybe ''of course, because this wasn't meant to be perfect, this plane exist to tests us, the perfection lies in metaphysical plane that can't be known, and imperfection is this world only proves it'
there's no way to use actual evidence to convince one that only accepts evidence that confirm one's conclusions
@@matheussanthiago9685 Nonsense; your two strawman examples (particularly the second one) aside, dumbing down ID doesn't demonstrate their views are dumb, or unscientific. For example: if I show you a car and affirm to you that that car did _not_ get put together by the wind, rocks, sand and so on by sheer dumb entropic luck, should I appeal to a "metaphysical plane that can't be known" to justify my claim?
“Many [people] were increasingly of the opinion that they’d all made a big mistake in coming down from the trees in the first place. And some said that even the trees had been a bad move, and that no one should ever have left the oceans.”
-Douglas Adams, Thé Hitchhiker’s Guide to the Galaxy”
What I love about I guys is the way I express your selfes so clear and so we'll spoken hands and facial expression make me smile most of the time I am sereaas sometimes when the topic needs extra concentration. Forgive me for my spelling. I truly new how to spell these word but my mind spells it that. Don't think I am a fool. I know u don't but might see me differently. I always add a little bit of me in the. Sometimes too much. I have never had a email from ..utube saying stop commenting so I am blessed .x
It's a pretty good argument against an omniscient and omnipotent creator
I suppose, although there will never be definitive proof of god's nonexistence. Ironically, if god exists, he created evolution.
I was always told by my biology tutor that evolution does things good enough.
In my adult life I understand that all too well. Haha
Ooh I'm early today! Yay! It's my nightly routine to make supper and sit down and smoke a bowl to scishow and eons and this was perfectly timed!
Evolution is relatable, takes a lot of time to do anything, gives up on stuff midway, works with whatever is is easier to do and settles for passable
Personally, I'd love to watch a speculative evolution documentary featuring Evolution itself being OCD about structural and physiological inefficiencies.
The recurrent laryngeal nerve: the perfect evidence of evolution. And that all vertebrates have a little fish inside them.
Seems a little bit fishy to me. 🤔
Yea for Rose.👏👏👏 Welcome to the Fam❤️
🤔 The eye segment... Perhaps the Inside Out version allows for better saturation of the light in the nerves creating a much more vibrant, vivid experience for us as land creatures.
Highly informative, thanks!
I am ready for some genetic engineering, I want me some cephalopod eyes.
Seeing in monochrome and being able to make certain objects in one's line of vision appear in colour at will seems like a fascinating perspective.
Basically, imagine your entire life looking like Schindler's List.
now imagine a hypothetical cephalopoda lineage that evolved to live on dry land, they should've been the dominant spices
And add in the reflective back coating cats have, even more efficient.
And maybe work in seeing Ultraviolet and Near Infrared too, modern cameras can see both with the related filters removed and it's kinda facinating to me own much we don't see, and that's without mentioning *Thermal Infrared* and microwave frequencies which are a whole other world of information and hidden sights, even common things would look alien seeing them at these far different electromagnetic frequencies
I’m currently dealing with a herniated lumbar disc, so I’m really feeling entry number 5.
5:21 RLN! finally, I've found you - once heard of that evolution quirks, but couldn't find details, where looking for stupid-long-nerve was fruitless and not so important for me - however, now I have got an anchor, thank you
It would be fun to see SciShow Psych look at this with neurology. I love all the counterintuitive "hacks" that give us cognition!
Ahh good ol wall banging. Such fun
Well banging
"Marsupials can more easily stop when conditions get bad and try again later" - meaning, empty the pouch...
Kangaroos have been known to eject their joey from the pouch while running from a predator. Serves two purposes: offers a distraction to the predator, and removes that extra weight allowing the mother to run away faster. Placental mammals can't do that - a heavily pregnant deer can't eject the baby to allow her to escape.
Kangaroos will often also have multiple babies going at different stages of development. One embryo inside in suspended animation, one pinky joey attached to the nipple, and one older joey that's in and out of the pouch. So repopulating when conditions improve after a drought, for example, is much quicker than a placental mammal of similar size.
You took the words right outta my mouth, P.J.
*Evolution making marsupial babies Fall Guys themselves to safety*
Evolution: Its not practical, but its fun to watch.
lizards usually end up evolving into birds or snakes while rats evolve in any mammal including felines, canines , humans, etc
Our inefficiency makes humans what we are. I like using my inefficient brain to avoid doing other stuff with other even more inefficient body parts.
Another example I know of: The fact that our respiratory and digestive systems use the same openings. There isn't really an evolutionary advantage for choking on our food; it's merely a side effect of evolution making things up as it goes.
Excellent video. Thank you
It's pretty crazy that the marsupial embryo know to climb into the pouch.
The body knows what it needs, somehow
Yeah Makes me feel better about my emo years where I felt as though I could only be described as a misconfigured slime resin hoping for another correctly humid cloudless day.
Every time I watch a SciShow video, I always feel a little bit smarter. 🙂 Thanks guys!! 💙
Very impressed. Excellent report.