Evolution

Explore the concept of biological evolution with the Amoeba Sisters! This video mentions a few misconceptions about biological evolution before providing a general definition. Then this video provides a description of four different evolutionary mechanisms (gene flow, mutations, genetic drift, and natural selection). Finally, the video presents several lines of evidence for biological evolution including homologies (molecular, anatomical, and developmental), the fossil record, and biogeography.
Table of Contents:
00:00 Intro
0:10 Misconceptions in Evolution
1:07 Video Overview
1:21 General Definition
1:59 Variety in a Population
2:12 Evolutionary Mechanisms
4:03 Molecular Homologies
4:47 Anatomical Homologies
6:13 Developmental Homologies
6:56 Fossil Record
7:48 Biogeography
8:54 Concluding Remarks
--------------------
FACTUAL REFERENCES:
Douglas John Emlen, and Carl Zimmer. Evolution: Making Sense of Life. Austin Macmillan Learning, 2020.
Fowler, Samantha, et al. “11.2 Mechanisms of Evolution - Concepts of Biology | OpenStax.” Openstax.org, OpenStax, 25 Apr. 2013, openstax.org/books/concepts-biology/pages/11-2-mechanisms-of-evolution.
Urry, Lisa A, et al. Campbell Biology. 11th ed., New York, Ny, Pearson Education, Inc, 2017.
Zedalis, Julianne, and John Eggebrecht. Biology for AP® Courses. OpenStax, 8 Mar. 2018, openstax.org/books/biology-ap-courses/pages/18-1-understanding-evolution.
General definitions of biological evolution? A few:
www.nature.com/scitable/knowl...
evolution.berkeley.edu/evolut...
*Wing claw as vestigial structure in many species of birds:
evolution.berkeley.edu/lines-...
www.biodiversitylibrary.org/p...
www.jstor.org/stable/2485270?
-------------
FURTHER READING SUGGESTIONS:
An interesting read about defining evolution from NCSE:
ncse.ngo/defining-evolution
Misconception Lists for Biological Evolution:
from Berkeley: evolution.berkeley.edu/teach-...
from Openstax: openstax.org/books/concepts-b...
Explore more about lines of evidence mentioned in biological evolution:
openstax.org/books/concepts-b...
Homology in Development: What happens to structures such as the postanal tail or pharyngeal slits (or pouches) during development?
ucmp.berkeley.edu/chordata/ch...
Horse Hoof Changes Over Time: an interesting read!
www.floridamuseum.ufl.edu/fos...
Kangaroos and Opossums: an interesting read:
askabiologist.asu.edu/kangaro...
-----------------------------------------------
The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching biology at the high school level. Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. Learn more about our videos here: www.amoebasisters.com/our-videos
Support Us? www.amoebasisters.com/support-us
We have a menu of our resources that complement our videos! Visit docs.google.com/spreadsheets/...
Our Resources and Handouts: www.amoebasisters.com/handouts
Biology Video Playlist: • Amoeba Sisters Biology...
GIFs: www.amoebasisters.com/gifs.html
Comics: www.amoebasisters.com/paramec...
Unlectured Series: www.amoebasisters.com/unlectured
Connect with us!
Website: www.AmoebaSisters.com
Social Media: linktr.ee/amoebasisters
MUSIC:
Our intro music designed and performed by Jeremiah Cheshire.
End music in this video is listed free to use/no attribution required from the KZread audio library.
TRANSLATIONS:
We gladly accept subtitle translations from our community. Learn more here: www.amoebasisters.com/pinkys-... We want to thank our amazing community for the generosity of their time in continuing to create translated subtitles.
We also have videos using an artificial voice via aloud.area120.google.com to increase accessibility. See our dubbed channels on www.amoebasisters.com/pinkys-...

Пікірлер: 162

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    @CosImUpRn5 ай бұрын

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    @_stacyhines

    5 ай бұрын

    right in time for my bio final this saturday too 🙏🏽

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    @itzzentle785

    5 ай бұрын

    so real

  • @agacademyproductions
    @agacademyproductions5 ай бұрын

    Hey Amoeba sisters, I just wanted to thank you for saving me this semester in biology!!!! I was failing the class at first but my friend recommended that I watch your videos, and the class finished yesterday and I got an A in it! Thanks to you! And here I am now watching your videos for fun :)

  • @AmoebaSisters

    @AmoebaSisters

    5 ай бұрын

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    I still remember back in 8th grade when I discovered your channel and used to study biology from your videos. I have now passed 12th grade and still sometimes watch your old videos just because of how you are able to teach in a very fun way. Thank you for getting me interested in Biology

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    @Grant_Little26395 ай бұрын

    It’s gonna be a lit day when the science teacher pulls y’all’s videos up on the screen.🔥🔥🔥

  • @diyachakrabarti6717
    @diyachakrabarti67175 ай бұрын

    I have my bio exam tommorow and Im just watching all of yalls videos and they are helping me SO MUCH THANK YOU😭🙏

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    @delucaday5 ай бұрын

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    @ThePeppermintCult-ci5ic3 ай бұрын

    love the DND refference, and this video is epic. You guys are awesome like I literally watch your stuff for fun. Thanks for being the best ang getting me through biology class!

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    @sophiahi5 ай бұрын

    I've been watching your guy's videos for 4 years now, they're really helpful for my biology class! Thank you sm.

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    @Fast_Arkangel5 ай бұрын

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  • @CosImUpRn

    @CosImUpRn

    5 ай бұрын

    Same

  • @ChaPkn
    @ChaPkn5 ай бұрын

    Hello Amoeba Sisters. I am a high school student watching you from Turkiye. I discovered you while looking for a biology channel on KZread for the exam I will take this year and I am glad I did. Thanks to your simple and entertaining lectures, I was able to learn many subjects faster than usual. I would like to ask you a favor. Since my English is not very good, I try to watch your videos with KZread's auto-translate feature. Although this feature works well from time to time, it usually does not work very well and inevitably the efficiency I get from the video decreases. If you don't mind, could you please add subtitles in different languages to your videos? I hope you see my message and I didn't bore you. May your success continue. I wish you a good day.

  • @Freeyourself206
    @Freeyourself2065 ай бұрын

    You help so many people its amazing. You two ladies and your team (if you have a team that is) deserve an award or a grant or some recognition. You fill in the gap where so many professors fail. I want to sincerely thank you for all the hard work, commitment and dedication. I also love that you continue to do this year after year. I am going to look, but I hope you put a donation link in every single bio. You have saved so many students, each person should pay you what they can afford because you are worth it. In fact you value far exceeds any monetary amount. Thank you so much

  • @boubou5585
    @boubou55855 ай бұрын

    Hi! I just want to say that I'm a French biology student, in a 2 languages classe, and my teacher showed us those video for exemple, and I just love it! I will now follow my channel, I'm sure it will be both a great assets for passing exams, and getting a better English. So just... Thank you for your work and passion. ( sorry if there's flaws in my english)

  • @GongyiXiao
    @GongyiXiao5 ай бұрын

    Your timing is impeccable. I just had this topic loosely taught to me, and it’s coming up in my January mock exams! You’re saving my life :’)

  • @ccdodard6789
    @ccdodard67892 ай бұрын

    amoeba sisters i want to thank you for helping me for my upcoming life science unit

  • @ccdodard6789

    @ccdodard6789

    2 ай бұрын

    from this video

  • @Sharp_Cheddar
    @Sharp_Cheddar4 ай бұрын

    New biology class this semester, always have the amoeba sisters to help me through it

  • @gabby4743
    @gabby47438 күн бұрын

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  • @farouk6437
    @farouk64375 ай бұрын

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    @arson_e.4 ай бұрын

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  • @kalbright3275
    @kalbright32755 ай бұрын

    It's getting late when this video came out, but nevertheless, I adore your daily content of biological science topics! 😉

  • @someone-338
    @someone-33812 күн бұрын

    LITERALLY SAVING MY BIOLOGY GRADE 🙏

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    @blueapple78044 ай бұрын

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    @Maria-bn2tn3 ай бұрын

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    @Jackofair5 ай бұрын

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  • @BenDover-mw6ic
    @BenDover-mw6ic5 ай бұрын

    My biology teacher plays your videos every day, so in a way you are my teachers 😂

  • @abhinavplatia3096
    @abhinavplatia30964 ай бұрын

    Hey thanks for all your videos they are really really realllllllly helpful....😊 BUT A REQUEST CAN WE GET A VIDEO ON ADAPTIVE RADIATION........PLS....IT WOULD BE HELPFUL AND GOES WITH THE EVOLUTION THEME TOOOOO..PLS🙏☺️☺️....Thanks...

  • @IzukuMidoriya-ly8hh
    @IzukuMidoriya-ly8hh3 ай бұрын

    THANK YOU I WAS DOING SO BAD IN BIOLOGY BUT I STARTED WATCHING UR VIDEOS AND NOW ITS SO EASY

  • @zeeshan2691
    @zeeshan26915 ай бұрын

    I extremely need this video 😊I just reach this chapter ......thank you

  • @JakeAndBeastBoy2002
    @JakeAndBeastBoy20025 ай бұрын

    Wow that was wonderful working of science lessons so cool 😎

  • @HannahLightner-cu6gd
    @HannahLightner-cu6gd3 ай бұрын

    Thank you so much for all of your videos!! A always check to see if you have a video on the content that I am currently reading, (Biology) and you often don’t disappoint!! You have a way of making science really fun, all while teaching us so well! Science is my favorite subject since finding your channel! #A+!!!!!!

  • @Monsterkun_
    @Monsterkun_Ай бұрын

    Really appreciate ur videos they help me alot even when i am in University right now. I must say , u have a really Amazing way of teaching, thanks for sharing your knowledge with everyone in such a creative and fun-filled manner.

  • @acleaverandshard6794
    @acleaverandshard67945 ай бұрын

    My sister told me I would do well in biology if I watched you and I did.

  • @alphalphafield
    @alphalphafield5 ай бұрын

    thanks amoeba sisters, this video saved me

  • @aquamarine718
    @aquamarine718Ай бұрын

    i got a biiology exam on tuesday I'm tryna finish your entire 90 vid biology playlist

  • @armansah419
    @armansah4195 ай бұрын

    You guys really made me love Biology..😉

  • @starreturns1
    @starreturns15 ай бұрын

    Oh wow! Thanks for making this

  • @shubhamsapate2003
    @shubhamsapate200311 күн бұрын

    Thanks for information in fun way ❤😊

  • @naikitchen2306
    @naikitchen23062 ай бұрын

    I love your videos! Its like im addicted!!! Ther just to amazing ❤

  • @sciencenerd7639
    @sciencenerd76395 ай бұрын

    this is great, thanks

  • @shreyamane7682
    @shreyamane76823 ай бұрын

    They are so funny 😃 Very nice animation 👍 Ameoba Sisters are so cute❤️ Thank you so much🙏🌹💞

  • @chloecheng227
    @chloecheng2275 ай бұрын

    THIS CAME OUT RIGJT AFTER MY EVOLUTIONS TEST

  • @Thecutecyanbird
    @Thecutecyanbird5 ай бұрын

    Evolution is so good at this for me is exciting! 😊

  • @stayhealthy457
    @stayhealthy4575 ай бұрын

    best Way of learning

  • @uwu3767
    @uwu37675 ай бұрын

    We all staying up late just to watch this

  • @DreadEnder
    @DreadEnder5 ай бұрын

    Amoeba sisters just uploaded! My biology teacher is going to have a field day

  • @sachitsharma1661
    @sachitsharma166126 күн бұрын

    My favorite words from evolution are "Ontogeny repeats phylogeny" and "survival of the fittest"

  • @ozeozeoze
    @ozeozeoze4 ай бұрын

    have the amoeba sisters done amoeba as a video yet? im learning about them in class now and we didnt get to watch an amoeba sister video :(

  • @astromeda_notal13n
    @astromeda_notal13n4 ай бұрын

    honestly without the amoeba sisters, i wouldn’t have made it past this semester in biology 😅

  • @Thecutecyanbird
    @Thecutecyanbird5 ай бұрын

    Lovable! 😊

  • @chemist_biologist
    @chemist_biologist5 ай бұрын

    YAY! New video😊

  • @adithimajumder7345
    @adithimajumder73454 ай бұрын

    Thank you so much mam❤

  • @electrostatic800
    @electrostatic8005 ай бұрын

    Amoebas the beloved sisters are back

  • @sediqullahmuslim1312
    @sediqullahmuslim13125 ай бұрын

    Keep it up and don’t be afraid of being judged for your actions or opinions because they don’t fit the agenda of your own party

  • @Darkfoxxflame69
    @Darkfoxxflame6922 күн бұрын

    Mass effect reference:) 2:31

  • @gojosolos__
    @gojosolos__5 ай бұрын

    I love you guys

  • @bustavonnutz
    @bustavonnutz5 ай бұрын

    I have my degree in Zoology, what people need to keep in mind is that: evolutionary changes within a species = observable, testable science; evolutionary changes into a completely different species = ideological, materialist philosophy. People act like microevolution + time = macroevolution, yet nature trends towards conservatism of the genome rather than innovation, as most random mutation is either outright harmful or completely useless. Thinking that random mutation & miraculous spontaneous generation are sufficient to explain the natural history of life on Earth is not only incredibly naive, but also bordering on religious dogma.

  • @davidrosen5137

    @davidrosen5137

    2 ай бұрын

    Are you kidding? You need to get your money back.

  • @drywall1873

    @drywall1873

    Ай бұрын

    Get a refund on your degree. Speciation has been observed

  • @Chimchimai
    @Chimchimai5 ай бұрын

    Our bio yt buddy

  • @way9883
    @way98835 ай бұрын

    6:09 i love this 😂

  • @lunagemini6150
    @lunagemini6150Ай бұрын

    Hey Ameba sisters, try watch Game Theory's video on evolution explained in Pokemon.

  • @chemmedic4089
    @chemmedic40895 ай бұрын

    Do a video on the reproductive system and then that's all 11 body systems complete!

  • @user-vy8kj4ib7v
    @user-vy8kj4ib7vАй бұрын

    When what is in is aeten is all gone?

  • @user-ii3fp3fy2z
    @user-ii3fp3fy2z4 ай бұрын

    I love watching the scissor sisters

  • @rehahs_real
    @rehahs_real4 ай бұрын

    why arent ur vids getting views :(

  • @dr.universesfriendsandfamily
    @dr.universesfriendsandfamily5 ай бұрын

    Wow I was a grow up and do your best for reason

  • @justhumblemeclarke7292
    @justhumblemeclarke72925 күн бұрын

    I have questions let's see if this answers them.

  • @Gsjudjtdgdeb256-uv3bz
    @Gsjudjtdgdeb256-uv3bz5 ай бұрын

    Please make a video on RNA interference

  • @PaperFirey
    @PaperFirey5 ай бұрын

    Its funny because im learning about evolution in school rn

  • @Spider-K
    @Spider-K5 ай бұрын

    This would’ve been real useful a few weeks ago💀

  • @shiminashafeeknasar4015
    @shiminashafeeknasar40154 ай бұрын

    '7:50' how the hail a giraffe be in noth america 😢??

  • @LikeBlakAndWhiteMUSIC
    @LikeBlakAndWhiteMUSIC4 ай бұрын

    pog

  • @Ikacita
    @Ikacita5 ай бұрын

    Hi

  • @ushkorner21
    @ushkorner215 ай бұрын

    Science got too early for me I'm only jr high school but my science teacher gives collage lessons 😂

  • @CCP-Lies
    @CCP-Lies3 ай бұрын

    Kent hovind must dislike this one

  • @razorlightning6002
    @razorlightning60023 ай бұрын

    bio test next period over this and it determine if i pass

  • @Yahya-xh7oi

    @Yahya-xh7oi

    Ай бұрын

    well... did it???

  • @mathew3267
    @mathew32673 ай бұрын

    Every human has a timestamp on when they were born. Lets use January 1 2000 at 2:07 AM, if you go back in time there has to be a timestamp for the first human. The question now arises what species was the parent of the first human?

  • @davidrosen5137

    @davidrosen5137

    2 ай бұрын

    In the context of biological evolution, that's a nonsensical question. Every individual organism is the same species as its parents and its offspring. Understanding that takes a lot of prerequisite understanding of biology and a deep dive into the topic of biological evolution.

  • @mathew3267

    @mathew3267

    2 ай бұрын

    @@davidrosen5137 Your answer is nonsensical answer. And also its not answer at all because your didn't answer the question. You basically said evolution is true because science. I am a scientist, I'm a computer scientist, science is the method of how we do something. If I can understand computer science concepts surely I can understand your make believe fairly tale of animals magically changing into other animals unless of course there a plot holes (like the one I outed in my original comment) that were never thought when making it up.

  • @luish1498

    @luish1498

    2 ай бұрын

    btw , that tipe of question is like «if you go back in time there has to be a timestamp for the first person speaking spanish. The question now arises of who were the parents of the first Spanish speaker?«

  • @mathew3267

    @mathew3267

    2 ай бұрын

    @@luish1498 Thats not how evolution works.

  • @luish1498

    @luish1498

    2 ай бұрын

    @@mathew3267 how you say «Thats not how evolution works.« funny , when is you that dont know how evolution works.

  • @ohtaesvn
    @ohtaesvn5 ай бұрын

    hi

  • @DevSrijit
    @DevSrijit5 ай бұрын

    This had to come 7 hours ago 😢 I just had my finals which had this a few hours ago.

  • @TailsOfficialChannel1992
    @TailsOfficialChannel19925 ай бұрын

    Oh wow that was really good simple about Evolution of grow up

  • @Angel-he2yj
    @Angel-he2yj3 ай бұрын

    If the lawnmower could hit a grasshopper, it would also hit the soil and ruin the lawn and machine. Most lawnmowers Cut the grass down to at least an inch in height.

  • @stevenpowell8278

    @stevenpowell8278

    3 ай бұрын

    I'm pretty sure lawnmowers are designed to draw air and objects up from the ground, not just cut. Otherwise every lawnmower just cuts and leaves all the cut grass and stuff behind. So grasshopper vs. mower blades that both pull them up as well as cut = what you see.

  • @TheStarflight41
    @TheStarflight412 ай бұрын

    The alleged mechanism is absurd. The bias in this field is so widespread and intractable it is has disqualified it from being a serious scientific endeavor.

  • @davidrosen5137

    @davidrosen5137

    2 ай бұрын

    Actually the opposite of everything you said is correct.

  • @kingthief9118

    @kingthief9118

    2 ай бұрын

    No, evolution is real and you don't understand it.

  • @walkergarya

    @walkergarya

    2 ай бұрын

    Again you assert nonsense as if you knew what you are talking about. As practically all working biologists disagree with your claim.

  • @drywall1873

    @drywall1873

    Ай бұрын

    then prove it wrong

  • @cjwork2882
    @cjwork28824 ай бұрын

    Quit yo yapping lil one🙏🙏💯💯

  • @markdebrey4848
    @markdebrey48485 ай бұрын

    first

  • @hthgfrhhdgt
    @hthgfrhhdgt28 күн бұрын

    who believes in this stuff? lol

  • @PhilipK-xk4by

    @PhilipK-xk4by

    28 күн бұрын

    We don’t. We know evolution happens.

  • @hthgfrhhdgt

    @hthgfrhhdgt

    27 күн бұрын

    @@PhilipK-xk4by oh yea? prove it😂

  • @PhilipK-xk4by

    @PhilipK-xk4by

    22 күн бұрын

    @@hthgfrhhdgt We know evolution happens because we can compare the genetic and physiological similarities of all species. (For instance: You are still a mammal.) And we can deduce from fossil records which species did and did not exist at the same time. (It’s why you’ll never find a modern dog fossil in the same geological layer as a tyrannosaurus.)

  • @ivandmitriev5748

    @ivandmitriev5748

    22 күн бұрын

    ​@@PhilipK-xk4bydon't bother, these guys will just deny any evidence you give them

  • @littlebitmoreksp

    @littlebitmoreksp

    18 күн бұрын

    @@hthgfrhhdgt the proofs that even the uninformed can understand: - the fossil record (why are there fossils of extinct species? why are there fossils of transitionary species (where transitionary means animals between two different recognized species)? why aren't fossils of recent animals in older rocks?) - vestigial structures (there are parts of various animals' bodies that don't do anything anymore. example: a whale's internalized leg bones. why does it have leg bones if it doesn't have legs anymore? what purpose do these bones serve? why don't fish and sharks have those bones?) - microevolution (we've observed species changing on a small scale over the course of several centuries as they adapt to new environments. why is this? why is it any different from long-term evolution?) everything else I could use to prove it is not something you'd understand without a decent background in biology or geology or anthropology, which, considering you're denying evolution, you do not have

  • @robg_
    @robg_2 ай бұрын

    It is preposterous to believe that everything came from nothing, that the elegant laws of physics, chemistry, nuclear reactions and planetary motion, as well as symmetry, order and harmony, sprang from, and that life came from a mixture of chemicals, which eventually spawned intelligence, logic, self-consciousness and morality. Romans 1:19-21 19 since what may be known about God is plain to them, because God has made it plain to them. 20 For since the creation of the world God’s invisible qualities-his eternal power and divine nature-have been clearly seen, being understood from what has been made, so that people are without excuse. 21 For although they knew God, they neither glorified him as God nor gave thanks to him, but their thinking became futile, and their foolish hearts were darkened.

  • @DocReasonable

    @DocReasonable

    Ай бұрын

    "Something cannot come from nothing." That debunks a creator God, then.Thanks!

  • @AMC2283

    @AMC2283

    Ай бұрын

    feel free to believe in gods--evolution is exhaustively verified

  • @walkergarya

    @walkergarya

    Ай бұрын

    Your ignorance of science does not refute that science and bible quotes do not impress us because we know that it was fools and liars who wrote those pages.

  • @tacoenjoyer8623

    @tacoenjoyer8623

    16 күн бұрын

    Although something can technically come from nothing (it’s a long explanation and I’m too tired to do it all over again), and even if it couldn’t, that wouldn’t indicate a God. Why would the creator/s of the universe have to be conscious. It could literally just be an eternal extra-dimensional field of energy, there are infinite possibilities for what it could be other than a God.

  • @mayonardodavinci4947
    @mayonardodavinci49475 ай бұрын

    Dang I just finished BIO 180. Would have been useful then. 🥲

  • @rafsan2983
    @rafsan29835 ай бұрын

    I needed this a few days go, but I still got a 90 thankfully!

  • @spaceandmswa
    @spaceandmswa4 ай бұрын

    hi

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