Natural Selection, Adaptation and Evolution
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- čas přidán 15. 08. 2024
- This video tutorial covers the concepts of Natural Selection, Adaptation, Evolution and Fitness. It reviews how to interpret population graphs, provides examples of directional selection, stabilizing selection and disruptive selection, and also addresses several misconceptions about how natural selection works.
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[BOGObiology]. (2020, July 30). Natural Selection, Adaptation and Evolution. [Video File]. Retrieved from • Natural Selection, Ada...
#evolution #naturalselection #adaptation
Contents of this video:
00:00-00:20 Introduction
00:20-1:12 Fitness
01:13-2:32 Natural Selection & Adaptation
2:32-2:59 Misconception #1: Individuals Evolve
2:59-3:29 Sources of Genetic Variation
3:29-4:01 Misconception #2: Variation is Goal-Directed
4:01-4:25 Misconception #3: Survival of the Fittest
4:25-5:16 Population Graphs
5:16-6:31 Directional Selection
6:31-7:31 Stabilizing Selection
7:31-9:10 Diversifying/Disruptive Selection
9:10-10:33 Darwin Awards for Human Stupidity
So well explained and ilustrated!! Thank you, BogoBio!!! 🤓💕
The only video on the topic which has cleared my doubts.... subscribed 😄
Thanks, Shayar! Glad it was helpful, I had fun making it. Sending love from Boston! -BOGO
@@BOGObiology thanks for replying mam 😁😁
I love all of the explanations from this channel, easy to understand and very detail!!
One of the best and well explained video 👍🏻
When is your next video.... Your videos help me a lot in my studies....'ll be waiting for your next vid
Soon, within the next couple weeks hopefully! I have a full time "regular" job, so I have to squeeze in video-making on the side. Each video takes about 40-50 hours to make between the researching, scripting, animating and doing the voice overs. I used to make them in much less time but the quality was really poor (you'll FOR SURE see the difference if you look at videos from before 2016). Fingers crossed I'll have time to finish soon! Love, BOGO
I understand that...thanks for the reply
@@NoviceMGSYT My pleasure! Speed vs. quality is always a balancing act!
this makes me think about how I hear so many people talk about not wanting kids because of generational trauma /cycles and having to break those before having kids. these convos I had lead back to also violence we experience in the world now which lead me to think there are more people out there around the world feeling this, in a way that's breaking the cycle and delays a population what kind of effect will it cause? a lot of us are dealing with mental illnesses and fear it being passed down so don't have kids because of the experiences we had is that a type of selection?
Wow, great points. Yes, I'd say that absolutely qualifies as a type of selection. Definitely look into the idea of epigenetics; it hits on the intersection of environment and genetics including how trauma/prolonged stress can turn certain genes on or off. It helps us to appreciate the multigenerational impact of living through a war, witnessing genocide, being enslaved, etc. All of those have a measurable impact on our genes and on our health and wellbeing, but we're still trying to fully understand it.
I made a video about it but it just barely skims the surface czcams.com/video/Q8BMP6HDIco/video.html&ab_channel=BOGObiology
@@BOGObiology wow, I’m definitely looking into this later
Human beings are actually going against natural selection and Darwin’s theory with our feelings of empathy, love, care etc. actually our growth rate is stagnant I think.
6000, OR EVEN 6 TRILLION YEARS STILL SKIMMING SURFACES ALLOWING SOME TO BELIEVE AND THE OTHER SOME NOT TOO? LIKE ALLWAY'S AND DIED LONG AGO SAYING WE ARE GETTING SOMEWHERE!!!@@BOGObiology
Thanks for Indonesian subtitle, it's helping much ❤
Amazing video! Will certainly help me for my Ap biology quiz tmr!
Loved it!
Thanks a lot ❤️😁
Thank u for this 🤍
This is a great video!
Thanks! I had fun making it, especially coming up with all the silly "dating apps". I was cackling to myself as I was drawing the icons. Sending love and best wishes from Boston! -BOGO
Off topic maybe but what about gene regulation? surely genes get regulated differently in individuals depending on how much they're used. Which could slightly affect the next generations like with the regulation of melanin production.
Hey Sling, great point about gene regulation. It's definitely a bit outside the scope of this particular video but I actually made another video about epigenetics that might be helpful if this is a topic you're interested in: czcams.com/video/Q8BMP6HDIco/video.html&ab_channel=BOGObiology
Ciao! -BOGO
Great video
Thanks, Amit! Sending love and best wishes from Boston! -BOGO
Great video👌
Hey guys, can you please tell me that how do you make these tyPes of videos 🤗
Vittle is the app I use for animating, and then I add a voiceover and edit in iMovie. Here's a tutorial I made on using vittle. Hope this helps! -BOGO czcams.com/video/zXtA-xteSr8/video.html
Thanks a lot for your response 😊
This will help me a lot...
Is this audio very low or just me?
Yepp it's very low 🤔
How many years can a species/genus live without becoming another species or another genus? For example, can a species survive thousands or even millions of years without significant change and without becoming another species?
Can somebody explain this for me?
Sure. If there are no environmental pressures to change, then no change.
Yes, it is possible for a species to survive for thousands or even millions of years without undergoing significant change and without evolving into another species. This phenomenon is known as "stasis" or "living fossil" and is observed in some organisms that have remained relatively unchanged over long periods of time.
One classic example of a living fossil is the coelacanth, a type of fish that first appeared in the fossil record around 400 million years ago. Coelacanths were thought to have gone extinct around 66 million years ago, but in 1938, a living specimen was discovered off the coast of South Africa. The modern coelacanth is remarkably similar to its ancient ancestors, and it has remained relatively unchanged for millions of years.
Another example is the horseshoe crab, which has remained virtually unchanged for at least 450 million years. The horseshoe crab species we see today closely resembles fossil specimens dating back to the late Paleozoic era.
These examples demonstrate that certain species can persist for long periods without undergoing significant evolutionary changes. However, it's important to note that while some species may remain relatively stable over time, others may undergo gradual changes or speciation events, leading to the formation of new species. Evolution is a complex process influenced by various factors, including environmental pressures, genetic variation, and random mutations. So, the lack of significant change in a species over a long period is not a universal rule but rather a fascinating exception observed in some cases.
BUT WHATS THE DIFFERENCE BETWEEN ADAPTATION AND EVOLUTION? did it adapt or did it evolve
When you adapt you evolve.(how I see it)
You is populations btw x
Some people make up their own definitions of “adaptation” to suit their argument better on whether or not evolution exists. When speaking to those who argue adaptation is solely talking about an animal emphasizing it’s one characteristic of geno code within their set chromosomes, I would argue evolution = adaptation + mutation. But some people include “mutation” in their definition of adaption
I feel like their definition of adaptation is wrong, the textbook definition is "modification of an organism or its parts that makes it more fit for existence under the conditions of its environment"
I’m sorry but that’s not true..You have many mistakes in this video, how can I contact you to discuss them?!
What specific incorrect information did you notice?
@@BOGObiology 1 year later .... zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
@@luish1498LMAO
cool i guess
Thanks for stopping by, min min!
Glitch
I am failing thanks 🙏
You got this!
This is literally the copy paste of class 12th biology chapter "evolution" in India😃
It includes a joke about dating apps?? 🤣
@@BOGObiology except for that😁
gaytr is crazy
I couldn't resist!
FACT ALERT. The theory is great but the math doesn't work. The randomness of selection occurs at the DNA Base Pair which codes for an amino acid as part of a long sequenced chain of amino acids. These chains are then folded with the assistance of another enzyme (protein chain) into functional shapes with water loving spots and water hating spots. The folded globules then do a function in the scheme of the life of the cell. Most mutations are irrelevant or harmful. The entire process is random, then selection acts on the whole organism, the organism with many features, some good, some not so good. Maybe it screws its way into the next generation and gene pool, maybe not. Either way, It takes more than 500 million years, JACK. Imagine that.
Could you explain more for me ? So its not a valid theory ?
@@titicandysshorts8709he’s literally yapping the maths absolutely works out
So, what is your alternative? How do you feel life diversified?
I don't have a direct answer. I do have an analogy. Brueghel, Rembrandt, Picasso all used canvas, brush and oil paints to create their masterpieces.
@@CPHSDC we see organic chemistry happening naturally. So in your analogy the paint, canvases etc are all found existing in nature.
We just found complex organic chemicals in the outer reaches of our solar system out past Pluto even. Further, we understand how they form.
The stuff to form life is apparently ubiquitous.
Now, can you answer my question? If you don’t understand or accept the current scientific consensus how did life diversify?
Climate change I can't stand this BS
Ratio+bozo+yb better 😹
Thanks for the video, I'll save it.👍
wow...turn that volume down a bit...you seem angry....like what natural selection does weeding out the bad stuff. We don't want it.