Speciation
Рет қаралды 1,643,546
Күн бұрынExplore speciation with The Amoeba Sisters. This video discusses sympatric and allopatric speciation and covers several types of isolation types including behavioral, temporal, and habitat isolations. This video has a handout at www.amoebasisters.com/handouts. Expand details for table of contents 👇
Table of Contents:
Intro 00:00
Defining Species 0:36
Defining Speciation 1:41
Allopatric Speciation 2:36
Sympatric Speciation 3:36
Prezygotic Barriers 3:48
Postyzygotic Barriers 5:16
Concepts to Keep in Mind with This Video 6:03
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@AmoebaSisters 4 жыл бұрын
We like to pin clarifications or corrections on our videos. We appreciate comments that bring them to our attention. There is a text box in this video that states that natural selection acts on populations, but we want to clarify this. Natural selection is based on differential reproductive success of individuals and this is a mechanism for evolution, which acts on populations, in order for this to happen. Natural selection does *occur* in populations (some references will use the words "*act on*" such as this example esajournals.onlinelibrary.wiley.com/doi/full/10.1890/0012-9623-95.2.24), but as a mechanism, natural selection does so by differential reproductive success of individuals. Our focus is to prevent the misconception that it does *not* produce an evolutionary change within the individual. The individual's survival and reproductive fitness will affect the population. Since we can't easily edit the text box, we are going to opt to remove the portion with the text box as it is explained without the textbox later in the video.
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@esuri3633 7 жыл бұрын
I am a biology major but was losing my interest recently in school and my major. I came here through recommendations last night and watched almost all of your videos since. Each video reminded me why I chose biology in the first place and got me excited again. Your excited voice and sense of humor got my hearts beating with my hopes and dreams once more. I cannot thank you enough. How did I forget how much I loved biology? Thank you, thank you. XOXO
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@Tallnashguy83 6 жыл бұрын
As 34-year-old college sophomore, I learn more from these videos than I do reading the text provided by school.
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@uniturtlep6018 Жыл бұрын
I learn more from the Amoeba Sisters than my actual biology teacher... LIFESAVERS!
@lukeyjukey 4 жыл бұрын
Aye watching this vid for my classes during quarantine
@UnicornButtzz 4 жыл бұрын
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@annastajaa4798 4 жыл бұрын
same
@theamazingspy3179 4 жыл бұрын
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@Sillymoment910 4 жыл бұрын
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I'm a student who's trying to learn by myself and be Infront of the teacher since he's so fast,but what I can say is that you've really helped me ever since COVID came to existence.May the good Lord bless you
@SleekSpacesLiving 4 жыл бұрын
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@AmoebaSisters 5 жыл бұрын
We have a resource that goes with this video! Find it on www.amoebasisters.com/handouts
@nobody-u-know 7 жыл бұрын
as always, succinctly and simply illustrated, fun to watch, and educational. thanks for making this.
@justinvenman5584 6 жыл бұрын
Even as a college student these videos are excellent for reviewing materials from my lectures! Huge fan! Keep up the great work!
@kolimo81096 7 жыл бұрын
we just covered this in class last think, your video was amazing, a two hour lesson summed up in 7 mins
@loricalass4068 7 жыл бұрын
Speciation does not support evolutonism as it is an example of stasis and stasis is the exact opposite of evolution. For ex. over 200,000 species of beetles are all still beetles. There are thousands upon thousands of species of birds, bees, lizards, trees, bacteria, trees, yeast, flowers, whatever. If a new species develops with any of those groups at all, you can bet your bottom science dollar that it will still be just a beetle, bee, bacteria, tree, fish, or whatever. We are supposed to fill in the blanks here with...faith...and think, "Well! If new species develops then things just keep evolving and evolving." But the next step above a species, in the Annimal or Plant Kingdom, is a Family. We aren't seeing any new Families forming. Anywhere. Ever. Accorrding to Darwin's so called Tree of Life and peer reviewed evolutionary literature, new Families have evolved. Over and over and over. However, nature operates today as it did in the past. In the real world, with trillions of life forms, we never see anything developing above the level of a new species. The life forms out there have purportedly had eons and eons of ancestors preceding them which should be showing at least one example of a part this Family "transitioning" to be another Family. But we only see that in the unverifiable, purely theoretical, realm of evolutionary literature, never in any life around us. If there is no evidence for transtiions from one Family to another - and please provide data if you know of any such evidence - then there is no evidence for evolution. But that's just for starters. If you want to take a walk on the wild side and look outside the box, you may find it interesting to see some of my other posts here.
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love how moo sorta hangs out in lots of the scenes of the video. thanks for helping me with science every day
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@tawnycallaghan2400 7 жыл бұрын
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@Dynocation 6 жыл бұрын
Very nice video. I'm not in school, but as an artist I like to come up with fictional animals, though I want them to be as scientifically accurate as possible (at least up to what is known currently). I really appreciate these videos. It's hard finding such specifics put into a video format. Keep up the good work. ^ - ^
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Thank you, amebo sisters! you're saving my bio grade
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This is the first of your videos I've seen.. Super creative visuals and great script for conveying this info in such a digestible manner! Keep it up :)
@SuperTeachersUnite 7 жыл бұрын
Such a great video!!! Definitely going to use it in my classes.
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Who's here because your teacher is making you watch this during Corona Cation
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me :)
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bro I hate this online school, I honestly would rather be in school, im a sophomore
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@xxjustanaveragehumanxx3779 3 жыл бұрын
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@petersteckle2095 5 жыл бұрын
Loved it. What a great summation of speciation.
@harrypotteravenclaw 7 жыл бұрын
Are tortoise and turtles an example of habitat isolation?
@firozbakhtahmed4428 7 жыл бұрын
We really love to watch your videos, fellow Amoebae!
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amoeba sisters really helped me with my studies involving biology, it never failed my expectation, I learned a lot from all of your videos. I wish all of the topic that is hard for me to understand is here and I can binge watch them, I can't explain how grateful I am that you have all this full of information videos, hoping that you will continue upload videos to help a lot of students struggling with their studies.
@maisthyguedes1244 3 жыл бұрын
wonderful explication, I´m from Brazil and i´ve learned so much more w this english illustration than in portuguese classes
@leo421loveselevators 2 жыл бұрын
Bring back this intro!!! Love it guys ❤️
@rhyebreadchu 5 жыл бұрын
Thanks for this video. I also understand that "fusion...ha!" reference!
@stevenkinsella3493 7 жыл бұрын
I find it surprising that the Amoeba Sisters will create a video about the same topic that I am currently learning in class... within the same week. I think the same thing happened in the Natural Selection video. It really helps to reinforce the material. Thanks for making these videos! Keep up with the coincidental uploads!
@richardschaafsma5909 4 жыл бұрын
I absolutely loved it Amoeba Sisters forever : )
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@daniyalshahzad2064 7 жыл бұрын
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@carolinelise3240 4 жыл бұрын
These videos are so good ! It's a fun way to learn
@brainboy7123 Ай бұрын
Bio test next period! Time to watch amoeba sisters
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Another interesting video I’ve watched. I’ve had to watch so many interesting videos for my class. I’m enjoying these kind of videos so much. 😁
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This is such a cute informative video. Loved it!
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Lovely videos. Keep them coming !
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@raheleyong499 7 жыл бұрын
Thank you guys sooo much for these videos :) Can you possibly d one about plant transport? Thanks!
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My teacher told me about you and now I love your videos
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Loved the video and always staying curious 😎
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Such a great presentation.
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This video is great... Helped me a lot
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So?
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this is really helpful for my science assignment on edgenuity
@prathitprasad 10 ай бұрын
I saw a docu series recently and in one episode they talked about a Tigon (Tiger Lion Hybrid) and how Lions usually have a gene which causes them to grow abnormally large physically ( found in the father's karyotype) but the mothers have a gene that prevents this.But when a Tigon is born its Abnormally large from a lion and a tiger due to the overgrowth gene, which doesn't allow it to live long. I think its the best example of the 2nd Postzygotic barrier you guys mentioned
@catsforuuu 10 ай бұрын
I think evolution is fact love from India🇮🇳
@imancastforlearning3806 6 жыл бұрын
Thank u so much excellent explanation
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You guys need more subscribers
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Going back to in person school this week!
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thank you amazing explaination
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Holy shit you guys are actually so clutch, I have a final on this tmr
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ikr!
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Great explanation
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@sheerospanks554 4 жыл бұрын
Thankyou, I got Taxanomy's paper tomorrow.
@spearheadcapitollaspinas9836 7 жыл бұрын
You have a pretty voice
@AmoebaSisters 7 жыл бұрын
Awwww, thank you so much :D
@spearheadcapitollaspinas9836 7 жыл бұрын
And i learned alot from you video thank you so much, are you a professor?
@rourouxiao0724 6 жыл бұрын
I'm sure that was you, Pinky.
@catija 6 жыл бұрын
Great video 👍
@jordanpaton6117 3 жыл бұрын
I loved that show
@Rockerfeller26 9 ай бұрын
The one video that clearly explained sympatric speciation 😭
@sparklysavbear 2 жыл бұрын
I love you amoeba sisters
@bubbly5372 5 жыл бұрын
That's pretty good!! 😀😍
@kennethtong7681 4 жыл бұрын
i love the intro music...
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i love your channel
@starsadmirer1724 5 жыл бұрын
Wow thank you♥
@platenoise256 7 жыл бұрын
the sistas dropped a new video
@dankdictator8884 7 жыл бұрын
Loved this video!
@saurabhsingh-ow7ue 5 жыл бұрын
Thank you
@padma7706 3 жыл бұрын
Those frogs are so cute!! Oh btw, anyone cramming for 2020 finals ?
@srishanthoruganti5827 Жыл бұрын
By this i got nice recap for my exam s
@bloodlessfang 2 ай бұрын
I love biology
@TheDevilsInterval 5 жыл бұрын
Great vid
@shirin4070 3 жыл бұрын
0:20 Dragon Ball Z reference, I can only think of that now.
@Michy.peachy 6 жыл бұрын
thank you
@johnnybones5406 Жыл бұрын
I feel like a Zonkey would be really sassy 😂😂
@yossihi6095 7 жыл бұрын
thanks for the vids I love science
@cameronpachico 4 жыл бұрын
i learn more here than in my science class
@TheJadedDragonArts 3 жыл бұрын
At 2:49, The foxes in the background on the right disappear lol. (might want to go to 2:48 instead so you can see them before they disappear.)