Your skill at explaining things is seriously unmatched. Your videos made me start reading more, appreciating nature and history more, and have interested to the point where I ended up recently changing my college major from neuroscience to marine biology! :) thank you for the amazing content Ben G Thomas your community greatly appreciates it
This happens, when you are getting knowledge in pieces. Look at astronomy nomenclature. As we are understanding more and more the names we come up earlier stop being accurate and intuitive.
@@dronillon2578 Aye, I can see that. It's just that I'm nothing more than an amateur with an interest in taxonomy, that studied for IT. In my field, ambiguity is the one bane we seek to purge at every turn, so looking at the other sciences that have been refined for centuries can get a bit mind boggling at times.
@@nulllex0099 I have an IT background too, so I see your point. In my opinion, the difference here is, as You have mentioned, the time scales on which new discoveries are made. Physics and Mathematics have been researched for millennia, while IT is in decades range. In the former case it has been many generations, in the latter just a few if any. Plus IT builds upon Physics and Mathematics. But I agree, sometimes the naming in sciences can be very confusing. Specially when you are not an expert in that field. It does not stop me in trying to understand the fascinating world around us.
@@dronillon2578 that's a terrific way to put it. Really, the death of curiosity is the death of advancing. It's just that, as far as personal feelings go, I'd just prefer it if it all were so tidy and neatly classified. Or if you want the OOP analogy, if I could run the whole script without raising exceptions. Alas, feelings don't really have a say in the matter. Still, funny to find someone else in IT in a biology video. You wouldn't happen to know a rather easy project that involved Big Data processing, would you?
@@nulllex0099 I would want it tidy and classified too. The trouble is that once you start renaming things, you create confusion between old and new texts/data. So unless you can process it all at once (when we and all our knowledge is completely digital perhaps?), you might create more issues than solve. Or you would have to create the right names from the beginning, which is pretty impossible to do when you know almost nothing on the subject yet. Yeah, I have no idea if/when I will use the knowledge about sharks acquired here, LOL. It is amazing non the less though. Strangely enough, the more I learn about physics and space exploration, the more amazing and precious the life around us seems to me. Sorry, BDP is not my cup of tea, Im more of a user side kind of guy.
@@Ahonya666 I thinl they went to the underbelly of larger animals & used it scrape or cut open the animal to feed, possibly in groups to be more effective.
... sup... ... ... right here -_( ' -' )_- ... ... ... because we're awesome... duh thank you Tylersaurus Akro... we're depressed... fining and bad press will do that.
I remember one time in high school my AP Gov class was supposed to be studying for the final when someone broke out laughing. It turns out he had been reading the wikipedia page for goblin sharks and someone had put a series of spoilers for an avengers movie randomly in one part of it.
"We initially thought rays were a member of the shark group, however we revised our classification when we realized that rays look nothing like sharks."
You probably only found a few differences, right? Basically skeleton, digestive tract, reproductive method? Slight differences in morphology? What else?
@drk321 other things like an air bladder for buoyancy and sometimes even a second respiratory mechanism, soft and hard rays in their flexible fins and various types of teeth that some families like Sparidae have such as incisors, canines and molars in the same jaw structure. These are a few properties that Osteichthyians have that Chondrychthians don't possess among a few that I remember. Judging this was 3 years ago I think I did pretty good remembering the answers I gave in my final exam comparing the two kinds of fish.
I've always found the whole cartilaginous group fascinating, especially since they always impress on me the feeling of 'ancientness' in regard to their persistent vertebrate characteristics. This video only made me appreciate them as a group even more.
Been binging this channel for the last couple of weeks. Had to sub! I love the content and the details you provide with the objective view point while still covering the controversies and the reasons for them. Keep up the great work! I can't get enough of ancient fauna and you're definitely scratching this itch I've had for a long time. Especially loving the marine life content, but I just love sinking my teeth into the unknown! There are only so many documentaries on the usual suspects I can consume, but you've covered creatures I never knew existed as well as giving me info on those we did that other outlets just aren't interested in covering. Wishing you much success :D
Thanks Ben, brilliant research. And yet, now I'm more confused than ever. This may require more than 8 minutes to absorb. They've been evolving for 500 M years, so I think that's a reasonable estimate. Love your work.
A shark is a fish with pointy teeth and the stuff that is inside our ears and nose plus only one fucking bone and it is the jaw...... Yes the fucking jaw Edit:227 likes wow thanks guys!!! Edit2:listen this i a fucking joke dont be commenting about the spelling!!!!
I always found it funny that a reptile is named with the title of fish lol as we know ichthyology is the study of fish and yet that reptile was never a fish XD
@@daryanasaurus9785 i know you didn't i didn't say you did lol i said i find it funny that the reptile basically has "fish" in its name i am pretty sure icthyosomething is the Latin name for fish its just something thats always made me laugh
I just wanted to say thank you for you're amazing content! I just recently learned of your channel, and I can't hardly wait to get home after work so I can binge watch your videos until I finally fall asleep. It's easily the biggest reason for my daily fatigue and exhaustion! But I LOVE it! I'm like a kid on Christmas morning, giddy with excitement. Once again, thank you for this. You definatly have a lifelong subscriber! Anyway, I need to get back to the video. 👍
as an ancient lineage, it had the basic form long before the great white. I am not sure whether it had it before the ancestors of the great white, but it goes way back.
Back in the early eighties, I worked for a summer as a long line fishermen in the Gulf of Mexico. I will be the first to tell you, that sharks are a very diverse and complicated grouping of organisms. And those are just the currently existing species.
@@MichaelSHartman thats because a platypus is a mammal and a bird isnt LOL 2 VERY different species thats like saying the echidna is related to birds cause it lays eggs 🤣🤣🤣🤣
One of these days future scientists are going to unearth the remains of some of the strange people I have seen shopping at Walmart and do a "What is a Human?" video.
Commenting for the algorithm, I think this was like the perfect amount of information to not drive away people with no knowledge of this topic, nor bore people who do.
Really enjoyed this. I'd never thought about what constitutes a shark before. So sorry you've had to go to including ads. Thank you for another great video.
Sharks & related cartilaginous fish from the Silurian-Permian are up there with Mesozoic crocodilians in how bizarre and at the same time somewhat recognizable they were able to become over the eons, they are infinitely interesting to me :D
What I learned from this: if fish spoke a language it would be latin and that every shark that you think is a shark isn't a shark but it is also a shark
CleanerBen Theres actually a small species if sharks that frequently gets out of the water and crawls in rocky surfaces to hunt small animals that live there. This species can stay out of the water for 10 min something like that. and as always thanks for watching
A shark is like like a really big fish with lots of teeth and it's like "raaaagghh I gonna eat yah!" and it does. They have a cartilaginous rather than a bony skeleton as well and no swim bladder so they will sink if they stop swimming.
My question, was the cartilage developed as a speed advantage? I ask because it feels like most sharks can chase down prey quite easily, or was it an adaptation to combat broken bones from attacks from other animals?
Fish are an informal collection of six vertebrate classes being Myxini (Hagfish), Petromyzontida (Lampreys), Holocephali (Chimaeras), Elasmobranchii (Sharks, Rays, Skates, Guitarfish, Sawfish, and Wedgefish), Actinopterygii (Ray-Finned Fish), and Sarcopterygii (Lobe-Finned/Fleshy-Finned Fish).
Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans. Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[3] Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole. Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (40 ft) in length.[4] Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can be found in both seawater and freshwater.[5] Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have numerous sets of replaceable teeth.[6] Well-known species such as the tiger shark, blue shark, great white shark, mako shark, thresher shark, and hammerhead shark are apex predators-organisms at the top of their underwater food chain. Many shark populations are threatened by human activities. Since 1970, shark populations have been reduced by 71%, mostly from overfishing.[7]
Waiting for the day he says "but first we need to clarify what is actualy a (whatever animal) and that is easy" A shark for me: swiming thing that somwhat loks like a shark and i dont want to stick my hand in its mouth Ray = stomped staby shark
@@adamd6648 That's why it's called sustainable, because the numbers don't decrease. The reproductive rate is high enough to make it sustainable. I am very against sharkfinning. Have been all my life. But with milksharks i see no problem with it. Since their numbers Do not and I repeat Do Not go down.
Carlos Leon mhm perhaps it’s just my lack of knowledge on sea food i just don’t agree with killing sharks at all we have lost so much already and the numbers keep decreasing i am very sensitive about the topic.
You can go back and add an audio overlay to that video, or just don't worry about it. Most people understand that science/biology is ever changing, always learning and evolving. I hope there's A LOT of reclassification in science!
So basically we have to associate words and groupings to certain animals with similar features, and in sharks it's basically impossible because they've been around for so long that every perceivable variation has existed at some point in time
Depends on what you consider to be a fish. Most people just think of bony fish as fish, cartilaginous fish separated from them evolutionarily many hundreds of millions of years ago. Let alone the modern jawless fish, and placoderm armored fish from which all living vertebrates descended from-- it's a mess of a term and I'm definitely glad I don't have to make a video about it lol (basically anything with a vertebral column and gills is considered some type of fish- basically not one main official group with all members and it's common ancestor, unless you consider something like all vertebrates to be one neat tidy group lol)
shark /SHärk/ noun a long-bodied chiefly marine fish with a cartilaginous skeleton, a prominent dorsal fin, and toothlike scales. Most sharks are predatory, although the largest kinds feed on plankton, and some can grow to a large size.
They always ask “what is a shark?” But they never ask *how is a shark?*
When is a shark
Is a shark
Who Is a Shark?
Are you a shark?
Where is a shark?
Q: what is a shark
A: big hungry fish
Big ocean Nom Nom fish
No
@Chewy Ltd Or hungry
Oh so tunas and salmons and mackerels and swordfish are sharks then?
A miserable pile of cartilage.
As an Australian I feel I need to say "That's not a shark. This is a shark." (holds up an adult Great White shark)
Philip Leitch Cape Town agrees
Omg I feel this 🤣
And that's reason #1,475,349 that you Aussies are the toughest fuc*ks on the planet, lol
Iceland "look at this big lazy poisonous one!" *holds up a greenland/sleeper shark*
(We also eat them but fermented, it's disgusting)
As an Australian, I can confirm
Your skill at explaining things is seriously unmatched. Your videos made me start reading more, appreciating nature and history more, and have interested to the point where I ended up recently changing my college major from neuroscience to marine biology! :) thank you for the amazing content Ben G Thomas your community greatly appreciates it
Wow thank you so much, I had no idea our videos could have such an impact! :)
Have you also awakened some kind of punchy boi spirit that can do whatever you want by any chance?
@@cristianolaboureur5999 lmaooo
How's the degree going?
Now I know that sharks are covered in tiny teeth.
This is ok.
Dermal denticles, neat thing . . . .
It would be cool covered in teeth.
And teeth are the only scale-derived things humans have.
Crunchy
Did you not learn that in 1at grade?
Fun fact, us humans are more closely related to tuna and other bony fish, than sharks are to them
What's funny is you could be saying US humans here. But I got the fact.
The plural of fish is fish.
I also like the fact that we are more removed from marsupials than hummingbirds are from T-Rex
@@sebastianortega1938 Not always. You can talk about different families of fishes.
@@therealzilch sorry, that's false, but crocodiles are more closely related to birds (surviving dinosaurs) than they are to lizards.
"What is a shark, but a miserable pile of fishes."
Dracula, propably.
UNDERRATED
*Sharkula
Biology just gets crazy sometimes. Or rather, nearly all the time
This happens, when you are getting knowledge in pieces. Look at astronomy nomenclature. As we are understanding more and more the names we come up earlier stop being accurate and intuitive.
@@dronillon2578 Aye, I can see that. It's just that I'm nothing more than an amateur with an interest in taxonomy, that studied for IT. In my field, ambiguity is the one bane we seek to purge at every turn, so looking at the other sciences that have been refined for centuries can get a bit mind boggling at times.
@@nulllex0099 I have an IT background too, so I see your point. In my opinion, the difference here is, as You have mentioned, the time scales on which new discoveries are made.
Physics and Mathematics have been researched for millennia, while IT is in decades range. In the former case it has been many generations, in the latter just a few if any. Plus IT builds upon Physics and Mathematics.
But I agree, sometimes the naming in sciences can be very confusing. Specially when you are not an expert in that field. It does not stop me in trying to understand the fascinating world around us.
@@dronillon2578 that's a terrific way to put it. Really, the death of curiosity is the death of advancing.
It's just that, as far as personal feelings go, I'd just prefer it if it all were so tidy and neatly classified. Or if you want the OOP analogy, if I could run the whole script without raising exceptions. Alas, feelings don't really have a say in the matter.
Still, funny to find someone else in IT in a biology video. You wouldn't happen to know a rather easy project that involved Big Data processing, would you?
@@nulllex0099 I would want it tidy and classified too. The trouble is that once you start renaming things, you create confusion between old and new texts/data.
So unless you can process it all at once (when we and all our knowledge is completely digital perhaps?), you might create more issues than solve.
Or you would have to create the right names from the beginning, which is pretty impossible to do when you know almost nothing on the subject yet.
Yeah, I have no idea if/when I will use the knowledge about sharks acquired here, LOL. It is amazing non the less though. Strangely enough, the more I learn about physics and space exploration, the more amazing and precious the life around us seems to me.
Sorry, BDP is not my cup of tea, Im more of a user side kind of guy.
6:18
Barber: whatchu want fam
Stetacanthus: ever seen a ironing board?
Barber: say no more
I need to know the purpose of that "ironing board" 🤣
@@Ahonya666 ironing
@@officersoulknight6321 try to iron that shark if it was alive, it has the same effect as your joke
@@Ahonya666 I thinl they went to the underbelly of larger animals & used it scrape or cut open the animal to feed, possibly in groups to be more effective.
@@Ahonya666 This mad for what?
What is a shark?
I've a better question, where is a shark?
I've even a better question *why is a shark?*
But no one asks how is shark?
*sad shark noise*
... sup...
... ... right here -_( ' -' )_-
... ... ... because we're awesome... duh
thank you Tylersaurus Akro... we're depressed... fining and bad press will do that.
Y'all need ice cream.
Why?
Because of evolution
Nice one got that reference👍
Happy Shark Week!!! My favorite shark is the goblin shark. (I guess Helicoprion is not a shark like I thought but I still love them of course).
Its a dirty rat
-fish
I remember one time in high school my AP Gov class was supposed to be studying for the final when someone broke out laughing. It turns out he had been reading the wikipedia page for goblin sharks and someone had put a series of spoilers for an avengers movie randomly in one part of it.
Megamouth! They look friendly. 🤷🏼♀️
"We initially thought rays were a member of the shark group, however we revised our classification when we realized that rays look nothing like sharks."
No, but they’re cute lil funny guys
@@bushwhackedonvhs not when they sting you
Rays are in the same class as sharks (phylogeny). I mean, if you want to get technical, sharks are related to bananas. Distantly but still related.
"What exactly a fish is"
Sounds like something a fish would say.
In my Ichthyology exam we were asked to find as many differences between Chondrichthyes and Osteichthyes . This brought back memories
You probably only found a few differences, right? Basically skeleton, digestive tract, reproductive method? Slight differences in morphology? What else?
@drk321 other things like an air bladder for buoyancy and sometimes even a second respiratory mechanism, soft and hard rays in their flexible fins and various types of teeth that some families like Sparidae have such as incisors, canines and molars in the same jaw structure. These are a few properties that Osteichthyians have that Chondrychthians don't possess among a few that I remember. Judging this was 3 years ago I think I did pretty good remembering the answers I gave in my final exam comparing the two kinds of fish.
@@GeneralKatarn Sounds like you did.
I've always found the whole cartilaginous group fascinating, especially since they always impress on me the feeling of 'ancientness' in regard to their persistent vertebrate characteristics.
This video only made me appreciate them as a group even more.
Well considering sharks have been around for over 400 million years kinda does make them ancient but arthropods are a lot older
Easy! Sharks=danger fish
Wrong, they are murder torpedoes.
No
most aren't dangerous, though.
Nature's Compendium I don’t know marlin are pretty dangerous too and they’re not sharks...
actually, most sharks are harmless to humans
Been binging this channel for the last couple of weeks. Had to sub! I love the content and the details you provide with the objective view point while still covering the controversies and the reasons for them. Keep up the great work! I can't get enough of ancient fauna and you're definitely scratching this itch I've had for a long time. Especially loving the marine life content, but I just love sinking my teeth into the unknown! There are only so many documentaries on the usual suspects I can consume, but you've covered creatures I never knew existed as well as giving me info on those we did that other outlets just aren't interested in covering. Wishing you much success :D
I thought I knew what a shark was till you confused the hell out of me LOL
So it's like a regular fish but it's 🅱️oneless
With toothy skin.
First name Ivar? Ivar the Boneless..lol
A plug for the Vikings..lol
🅱️ts 🅱️ore 🅱️han 🅱️hat 🅱️ol
SBBwasaight Vuong, except in their nose...
Thanks Ben, brilliant research. And yet, now I'm more confused than ever. This may require more than 8 minutes to absorb. They've been evolving for 500 M years, so I think that's a reasonable estimate. Love your work.
Q : what's a shark
A : a live hungry torpedo
Can you do a video about how and why Coelocanths went from inhabiting freshwater environments to the deep sea?
Adaptation and natural selection lol it is as simple as that 4 simple words
The got pushed by an Ancestor of Patrick Star off a cliff under the sea~
If it jumps out of the water and asks you to suck its claspers, it's _probably_ a shark.
?
the F U C K
Oh man that singing shark meme takes me back ☺️
STOP
I'll suck anything for twenty bucks
A shark is a fish with pointy teeth and the stuff that is inside our ears and nose plus only one fucking bone and it is the jaw......
Yes the fucking jaw
Edit:227 likes wow thanks guys!!!
Edit2:listen this i a fucking joke dont be commenting about the spelling!!!!
Sounds like the way a children's book would explain it. Very good and simple explanation.
Yyyeeeeaaaahhh
No
And stranger bonners
With attitude.
4:08 "S-scientist sir? I-I want to be classified as a true shark!
I-If that's ok! D : "
Fish : shark
Mammals: dolphin
Reptile : ichthyosaur
I always found it funny that a reptile is named with the title of fish lol as we know ichthyology is the study of fish and yet that reptile was never a fish XD
I didn’t say reptile was a fish
@@daryanasaurus9785 i know you didn't i didn't say you did lol i said i find it funny that the reptile basically has "fish" in its name i am pretty sure icthyosomething is the Latin name for fish its just something thats always made me laugh
James Quinn nerd lol, what a way to say “you seem smarter than me and I’m threatened by your intelligence”
@Womb Raider an observation makes me a nerd? 🙄🙄🙄
"what is a shark?"
* slams table *
shark is shark!!!
I just wanted to say thank you for you're amazing content! I just recently learned of your channel, and I can't hardly wait to get home after work so I can binge watch your videos until I finally fall asleep. It's easily the biggest reason for my daily fatigue and exhaustion! But I LOVE it! I'm like a kid on Christmas morning, giddy with excitement. Once again, thank you for this. You definatly have a lifelong subscriber! Anyway, I need to get back to the video. 👍
Everyone asking “what is the shark” but nobody asking “how is the shark”.
...A...
😢 true...
copied
Could you do a video on Glyphis, the true river Sharks
or bull sharks
@@raaston9761 Bulls Aren't fully freshwater Sharks, only partially.
I've often wondered about this subject. Thanks Ben 😉
I've found that the best Bens post to CZcams. I'm letting them down, but all in relativity.
What is a Shark?
A miserable pile of cartilage!
Well, they *are* cartilaginous fish, after all...
Came to post this
Havatchu
I was reading the thumbnail and Instead of reading "what is a shark" I read "what is a SHREK" I am spending to much time on the internet
Reported for nudity because you're never fully dressed without a smile.
I live in a town where hippies can walk around naked.
Master Charles Diltardino Florida?
Master Charles Diltardino where’s that. I’m interested in researching it
@@leecrotty658 euegene oregon
@bryan diaz varela lmao
Helicoprion the imposter
as an ancient lineage, it had the basic form long before the great white. I am not sure whether it had it before the ancestors of the great white, but it goes way back.
It was shark like that was the point
sneak 100
deception - 100
Shark -1
get out of my head
Back in the early eighties, I worked for a summer as a long line fishermen in the Gulf of Mexico.
I will be the first to tell you, that sharks are a very diverse and complicated grouping of organisms.
And those are just the currently existing species.
Will comparing DNA help more rather than appearances?
Yes because convergent evolution is a thing and can cause a lot of confusion on what is related and what is not
Modern taxonomy is based both in cladistics and genetics
@@GumaroRVillamil Probably helps when all your ancient cats have similar skeletons.
@E-best agressive agressor
The Sycamore tree and the lotus water plant are related, but the platypus and duck are not.
@@MichaelSHartman thats because a platypus is a mammal and a bird isnt LOL 2 VERY different species thats like saying the echidna is related to birds cause it lays eggs 🤣🤣🤣🤣
One of these days future scientists are going to unearth the remains of some of the strange people I have seen shopping at Walmart and do a "What is a Human?" video.
It's a Wal Martasurus sapiens.
A plastic producing beast.
But a miserable little pile of razor sharp teeth?But enough talk,have at you!
I was hoping someone would do this. XD
_Goddamnit, you beat me to it._
Commenting for the algorithm, I think this was like the perfect amount of information to not drive away people with no knowledge of this topic, nor bore people who do.
Those dang saqualeans... no motivation. They are quite content to live in squalor.
Really enjoyed this. I'd never thought about what constitutes a shark before. So sorry you've had to go to including ads. Thank you for another great video.
I hope they get some income from ads. They deserve it.
Don’t call yourself stupid! Say “mistakenly” instead. It’s ok to make mistakes ❤️
But it's also ok to be stupid, especially if you realize it and use the oportunity to learn more.
@@mastercharlesdiltardino8058 if you remain stupid out of choice. And unlike the gay, ignorant people are quite dangerous.
You cant stop me
@@chemieju6305 ha read a history book
Who needs a textbook when I have Ben G. I'll learn everything from these vids
Ben G Tomas: What is a shark?
Me, a dumb smart ass: well you see, a shark is like a normal fish but not quite
Sharks & related cartilaginous fish from the Silurian-Permian are up there with Mesozoic crocodilians in how bizarre and at the same time somewhat recognizable they were able to become over the eons, they are infinitely interesting to me :D
Shark, or not Shark, that's the question.
Less than nine minutes and more information on sharks than Discovery Channel ever.
Exactly
What I learned from this: if fish spoke a language it would be latin and that every shark that you think is a shark isn't a shark but it is also a shark
cannot possibly explain the joy the little guys at 6:40 brought me
Hey, Vsauce, Michael here, what is a shark?
But what if, sharks walked on land...
CleanerBen Or do they?
@@roughsharkangular2034....😮
CleanerBen Theres actually a small species if sharks that frequently gets out of the water and crawls in rocky surfaces to hunt small animals that live there. This species can stay out of the water for 10 min something like that.
and as always
thanks for watching
CleanerBen Epaulette shark
Not stupidly included, just mistakenly! People underestimate how important it is to talk to yourself kindly.
I'm a simple man... I see an acanthodian, I click
BGT: "What is a Shark?..."
Me, an -idiot- _intellectual:_ H A N G R Y F I S H B O Y E
I’ve been waiting my whole life for sharks to become ICONIC! Yas the evolution is real!
I have a jet black screw shaped, crested horn shark egg case, that I found on a relatively remote Australian east coast beach.
I love it.
So for my space marines i want a chambered small intestine, good to know
That way they know no fear
Great idea!
This is my first video of the new Decade!
What is a Shark?
Hungry Shark Evolution: Am i a joke to you? We had Godzilla duh.
I was thinking about that game too.
Like
5:02 Wow, astonishing photo. Great video, as usual :)
Sharks are the marmots of the sea, change my mind.
Hail Giratina The true god no, marmots are the sharks of the land
@@teathesilkwing7616 The SharkSea is the Marmot of the land
Carcharodontosaurs are sharks of the land.
@@daspletoraptor8366 you spelled Garchomp in a weird way
Change is the mind of the sea, shark my marmots.
A shark is like like a really big fish with lots of teeth and it's like "raaaagghh I gonna eat yah!" and it does. They have a cartilaginous rather than a bony skeleton as well and no swim bladder so they will sink if they stop swimming.
What is a shark! *tosses glass of wine*
A miserable little pile of teeth, but enough talk, have at you!
*teleports in a purple cloud *
My question, was the cartilage developed as a speed advantage? I ask because it feels like most sharks can chase down prey quite easily, or was it an adaptation to combat broken bones from attacks from other animals?
Sawfish and spade fish were classified as rays when I was a kid. Now, I believe they are considered sharks. But, it's a new week, so who knows.
Haha. Damn. Identity crisis much?
Fish are an informal collection of six vertebrate classes being Myxini (Hagfish), Petromyzontida (Lampreys), Holocephali (Chimaeras), Elasmobranchii (Sharks, Rays, Skates, Guitarfish, Sawfish, and Wedgefish), Actinopterygii (Ray-Finned Fish), and Sarcopterygii (Lobe-Finned/Fleshy-Finned Fish).
A shark is any fish that can make you involuntarily pee yourself while scuba diving.
Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used for extinct members of the subclass Elasmobranchii outside the Selachimorpha, such as Cladoselache and Xenacanthus, as well as other Chondrichthyes such as the holocephalid eugenedontidans.
Under this broader definition, the earliest known sharks date back to more than 420 million years ago.[3] Acanthodians are often referred to as "spiny sharks"; though they are not part of Chondrichthyes proper, they are a paraphyletic assemblage leading to cartilaginous fish as a whole. Since then, sharks have diversified into over 500 species. They range in size from the small dwarf lanternshark (Etmopterus perryi), a deep sea species of only 17 centimetres (6.7 in) in length, to the whale shark (Rhincodon typus), the largest fish in the world, which reaches approximately 12 metres (40 ft) in length.[4] Sharks are found in all seas and are common to depths of 2,000 metres (6,600 ft). They generally do not live in freshwater although there are a few known exceptions, such as the bull shark and the river shark, which can be found in both seawater and freshwater.[5] Sharks have a covering of dermal denticles that protects their skin from damage and parasites in addition to improving their fluid dynamics. They have numerous sets of replaceable teeth.[6]
Well-known species such as the tiger shark, blue shark, great white shark, mako shark, thresher shark, and hammerhead shark are apex predators-organisms at the top of their underwater food chain. Many shark populations are threatened by human activities. Since 1970, shark populations have been reduced by 71%, mostly from overfishing.[7]
They’ve got more efficient intestines than us I thought we were the master race it’s not faaaaiiiiir!
Waiting for the day he says "but first we need to clarify what is actualy a (whatever animal) and that is easy"
A shark for me: swiming thing that somwhat loks like a shark and i dont want to stick my hand in its mouth
Ray = stomped staby shark
What is a shark? Awesome. Peer reviewed, scientific fact.
I honestly didn't know sharks had scales. I thought it was skin similar to dolphins. Well, you learn something every day, I guess.
I like the mako shark, he is tiny af yet so agressive so he is basically how i imagine shark version of tiny yandere anime girl
No.
um... mako get like 15-18 ft long...
Happy to see you doing a video on murder torpedos
To bad we keep hunting them😭
depends which one, milksharks are a very sustainable food source
Carlos Leon yea how long will that last until their numbers decrease drastically.
@@adamd6648 That's why it's called sustainable, because the numbers don't decrease. The reproductive rate is high enough to make it sustainable. I am very against sharkfinning. Have been all my life. But with milksharks i see no problem with it. Since their numbers Do not and I repeat Do Not go down.
@@adamd6648 Also fishing has bee limited as well. So if anyone is looking to try sharkfin soup. Make sure it's a milkshark
Carlos Leon mhm perhaps it’s just my lack of knowledge on sea food i just don’t agree with killing sharks at all we have lost so much already and the numbers keep decreasing i am very sensitive about the topic.
But how do you make a ray??
Take a shark, and make it flat :D
I'll do you one better. Why is a Shark?
You can go back and add an audio overlay to that video, or just don't worry about it. Most people understand that science/biology is ever changing, always learning and evolving. I hope there's A LOT of reclassification in science!
What defines fish?
Is this going to be another philosophical question of what constitutes a fish? Or what defines something in general? Hmmmm
A fish cannot be drowned as easily as a puppy but more easily than a rock.
Happy Shark Week!
They always ask "what is shark"
but never "how is shark" 😔
this is so sad can we hit 10 likes
You should do a video about the Acanthodians
we need to look at a new word for all the "fishes"
because they're different
Swimmy things with a backbone.
Herps and mammals are just strange land dwelling fish aside from the ones that went back to the water.
So basically we have to associate words and groupings to certain animals with similar features, and in sharks it's basically impossible because they've been around for so long that every perceivable variation has existed at some point in time
I don't mean to get political, but ｗｈｏｍ ｔｈｅ ｆｕｃｋ ｉｓ ｓｈａｒｋ
A lot of great pics of species I've never seen
A miserable fish of secret.
i would love a video on what a fish is!!! ❤️
Depends on what you consider to be a fish. Most people just think of bony fish as fish, cartilaginous fish separated from them evolutionarily many hundreds of millions of years ago. Let alone the modern jawless fish, and placoderm armored fish from which all living vertebrates descended from-- it's a mess of a term and I'm definitely glad I don't have to make a video about it lol (basically anything with a vertebral column and gills is considered some type of fish- basically not one main official group with all members and it's common ancestor, unless you consider something like all vertebrates to be one neat tidy group lol)
Nobody:
Ben G thomas: What is a shark?
How does it feel to be so unoriginal and so uncreative that you make this comment?
@@SevenPr1me who do u think u r
so glad i found ur channel! keep up the good work!
shark
/SHärk/
noun
a long-bodied chiefly marine fish with a cartilaginous skeleton, a prominent dorsal fin, and toothlike scales. Most sharks are predatory, although the largest kinds feed on plankton, and some can grow to a large size.
Very neat, love to know about sharks, their cousins and the look alikes
What an interesting video! I learned alot of new things about sharks, and understand the species a lot better now. Thanks!
what is a shark?
a miserable pile of secrets!
It's not that complicated. It's just very, very interesting. This is always fun.
Mr incredible slamming on table "SHARKS ARE SHARKS!"
Love your content! As always, thanks for doing the heavy lifting and providing the information to us in a concise and digestible manner! 😀
4:07 The suspense of waiting for that tail fin to end.
YEP 😂
"there are some things that are not sharks"
Love you guys :')
It's 2am and my recommendation is getting philosophical