pretty sure 90% of us were sent here by our bio teachers because of corona

Who else is here because your science teacher assigned this

If you need a long summary, here you go: (also i recommend watching at either 1.25 or 1.5 speed) The video is about the Galapagos Islands, and how the finches that live there have evolved. Two scientists, Rosemary and Peter Grant, have come to the Galapagos every summer since 1973 to learn more about the evolution of finches on the islands. In the video, they talk about a wide variety of facts, not just about the finches. An example of this is the history of the Galapagos, how they rose about 5 million years ago (relatively young for an island), are about 600 miles off of mainland Ecuador, and were discovered by Charles Darwin on his journey around South America. They talk about how the first finches had a small beak perfect for finding small bugs on plants, and they slowly evolved to how they are now, with a thicker beak designed for getting fruits from trees. They also talk about how all of the over 13 species of finches are related to each other in some way, which tells that only one species came from the mainland and the rest evolved over time. The video talks about the history of the finch, and how the scientists would catch, measure, and tag the birds every morning in the hopes of discovering more about the birds. In 1977, a horrible drought came to the Galapagos, and almost all vegetation disappeared. The ground finches were competing for food. They eventually had to turn to the larger nuts, where the smaller-beaked finches had problems. Over 80% of the ground finches died that year, where there was no rain for about 18 months. Because of this, the finches evolved to have larger beaks. 5 years later, there was about 10 times the usual rain amount. This changed the island so much that when the drought came again a few years later, the seeds had actually decreased in size. The Grants also discovered that the different species of finch would not mate. They also had different sounds, and males would only mate with females who had the appearance of their own species. The video ends by explaining that around 2 million years ago, one finch population arrived. When its offspring went to the other islands, they faced different conditions and had to evolve to meet those conditions. yes its spell checked, yw ;)

i cant find half of these science questions

Nobody: 90% of the comments: Who's here for science homework?

rip my recommended after all these videos I have to watch

Seeing all these comments, I feel compelled to confess something... 👁👄👁 Back when I was still in school, my IB Biology (HL) professor asked us to watch this sometime during Year 1 of IBDP (so most probably 2016), and I just added it to my Watch Later, never actually watching it. When it was brought up in class next time, we all pretended we had watched it, and while I am not sure if the professor bought our act or not, that was that. The video was never mentioned again. This was the actually the very first video that I ever added to my Watch Later. I had never used the feature before this, surprisingly. I could not get myself to remove this from the list, so every time that I sort it from Date Added (Oldest), this pops up on top. It is 2020, and I am in university right now. Seeing all these comments about professors directing everyone to this video makes me feel oddly nostalgic. I almost hate to say it, but I miss the IB, despite how demanding of a programme it was. I miss the school, and I miss nearly everything about the experience. It is hard for me to accept and believe that I am not a current IB student anymore. Damn. I hope I feel better once I post this comment. This was a long time coming... Try to enjoy school while you can, my dudes. 🦋✨ P.S. I am finally going to watch this thing, lmfaooo. Over three years late, yes, but at least you cannot say that I never got around to doing it! 🤡✨

i love how people are commenting “I actually learned so much” like NO BECKY YOU PUT IT ON x2 SPEED

for all students who want a summary Darwin's finches (also known as the Galápagos finches) are a group of about 15 species of passerine birds. They are well known for their remarkable diversity in beak form and function.This is because of natural selection.They used to be 1 species but as they moved from the different islands ( different environments) they adapted and became many species.

🦈🦈🦈🦈🦈🦈🦈🦈🦈🦈🦈🦈🦈🦈 Here are some timestamps 2:30 for introduction to the finches. 3:20 for Galapagos island size comparison 4:55 history of finches. 5:15 for answer to number 3(aka only one species of finch came from the main island.) 7:25 1977 drought. 8:30: % of bird death/beak study. 10:00 Huge rains=smaller seeds. 11:30 species definition, geographical separation. 12:00 finches mating. 12:50 male mating. 14:00 species breeding and interbreeding. 🦈🦈🦈🦈🦈🦈🦈🦈🦈🦈🦈🦈🦈🦈

thank you for uploading this video.

Schools still want to teach even in the end of the world

Thanks to Corona we can all enjoy this video together 😉

I don't understand... Do the 500+ dislikes come from high school students? I mean, as a young adult, college student, I find this video captivating. It may not teach you a practical skill, agreed, but can't you see nature's beauty and how cool the natural selection is? -_- Makes me want to get a biology degree, buy a sailboat and go hangout there.

i had to watch this for class but daaannnggg it's interesting!!

Shoutout to anyone watching this for Bio 12. :DDD

lol watched this video in class in 7th grade, then got assigned to watch it again in 10th grade

POV: you were summoned here by your science teacher- btw this was a actually a very interesting video. i really learned a lot!

I came for school but this was actually lowkey interesting.

The 278 dislikes are students who don't want to watch this but have it as an assigned grade.

We watched this same video last year before corona, and now we have to watch it again?! why ;(

For all the folks complaining about science homework, I actually thought this was kinda cool

Thanks to Peter and Rosemary Grant they have documented and witnessed evolution in progress. With enough environmental pressures evolution kicks in high gear resulting to the birth to a new species. Beautifully done video!

Thank goodness for the devotion , discipline and the incredible zealousness shown by these two Evolutionary Biologists who have spent their combined entire scientific careers of 80 years showing how adaptive radiation or simply variations that take place within a species that may or may not be an advantage in that variation . Not a lot to show for 2 or 3 million years of evolution , 13 distinct FINCHES from a finch and not an albatross. So what farmers and animal breeders have known for millennium and have utilized these same recognizable genetic variables to much greater effect in sometimes as little as decade , and yet we have highly educated people still postulating these incredibly merit-less and lacking claims 150 years latter .

This is amazing. So much dedication and then finally letting the whole world know. Nature we bow down.

Very informative and fun to watch. Thank you for such a high quality content!

guys, click the 3 dots next to [SAVE] and click open transcript. use [CTRL] + F to search for your answers! hope this helps :D

I was struggling with the concepts in statistics until I found the lessons based on the data collected about the finches. I finally started to understand the concepts. I can't thank you enough!

Science Homework =( At least the video is fun

im in 9th grade trying to finish all of my missing assignments before finals, this is the only video i really enjoyed to watch :0

This was actually a really good video!

I remember seeing a headline about this in a science magazine several years ago - randomly remembered it and decided to look into it. Very informational video, and this is amazing research! Cool to see evolution in action.

What I learned about the many species about the finches are how each one is diverse and is specialized to do one thing. Like with the beaks certain types of finches hunt and feed on for example Larvae and or cactus plants. Each Finch looks alike but has so many different characteristics that make them all so unique. One thing that really is strange is why there are 13 different finch species that all evolved and survived on the Galapagos Islands. - There you go thank me later, now go get ready for history Tomorrow

Best part of the video were all of the chill lizards and iguanas completely ignoring the birds that walked all over them

Here because my awesome science teacher.

Even though they didn't use these words, this video helped me to understand allopatric speciation.

This is my bio class hw

The video was pretty interesting, and I learned a lot.

Was I directed to this video because of school? Yes. Did I find the video very enjoyable, informative, and interesting? Also, yes.

im here bc of biology class like everyone else, but wow this is actually pretty interesting

This video gone be number one on youtube because of corona

I'm not watching this for class. I'm 62 years old and retired but stuff like this fascinates me.

Drop down the interesting facts so we can all help each other out finish this

12:06 what a savage he tried to push the egg of the cliff

3:45 lizard just chillin

What's the answer to number 11 though?

I don't understand students that take summaries on this. This is amasing

Yall, I'm in college and my professor played this in class. It never stops. Still an interesting and well-made video.

Mr Mullen if you see this just know that’s it mean to make us take notes on a KZfaq video

Came across this and remembered I watched this back in 7th grade. One of the first things that deconverted me from creationism haha

Yay for the Grants! Love your dedication to this project.

Very great documentary, thank you for sharing.

it was really nice to meet Mr and Mrs Grant! Both are such lovely people :)

The males be like: HEY! LINDA! STOP IGNORING ME! I ASKED U ALREADY DO YOU WANT SMALL SEEDS OR LARGE ONES FOR DINNER! LINDA U OKAY?

I love this so much I read the whole beautifully written book.

Y’all, help me out, what was an alternative explanation, and how did the scientists discount it?

Thanks Ms. Witting for making us do work and watch this vid ;/

currently watching this video for online school but i sweat to GOD that we watching this XACT video in class like a month and a half ago.... what?

this video is very interesting I have a question though. what made you want to go on this scientific journey?

The standard view of evolution is slow and steady, but I have always maintained evolution can occur very quickly under the correct environmental pressures.

i let this play in the back going while i shopped on amazon lol.

Is anyone watching this because they're genuinely interested in science, or just because of school? I'm here for fun, and am an evolutionary fanatic. I can't get enough of this stuff

This is the second time I have had to watch this. First in 7th grade life science and now in highschool bio -_-

Be thankful you can say that. Others have died, are sick and others are going out to work to have food ready for you in the supermarket. You are very much blessed

I did't even think the video was that bad why r all of u so pressed

march 2019, this was uploaded 5 years ago yet i’m still watching it for bio classz

This is a great video! I'm going to show it to my Biology class.

I watch this in school and when I do I’m excited

My biology teacher made me watch ts

I've watched this 5 times and I'm still having trouble comprehending it

GUYS PRO TIP SO YOU DON'T HAVE TO WATCH THE WHOLE 16 MINUTE VIDEO: idk if you can do this on mobile, but on desktop, click the 3 dots next to the like and dislike, share, and save buttons. then press open transcript and click on the captions to go to the time. my teacher was nice and left timestamps though. if you're reading this, thank you mrs. bergen!! lmao

who the hell disliked this, i know its for school but this is actually kinda interesting

Somehow felt jealous of the students who get to watch this as homework. I hope my biology teacher would be so awesome.

Overall, the Finches of the Galapagos became different species since when the populations geographically separate and adjust to their new habitat/environment, they undergo adaptations. When or if they come back in contact again, they won’t mate. Hence, creating distinct species.

This video is very well made. thank you

wow..very fascinating is our nature.Really amazing video,clear all my doubt about natural selection. and adaptive radiation.

90% of the comments:im here bc of science class me:im here for fun and i dont know what to watch

why at the end of the world do i have to watch a 16 minute video about birds (idek what its about)

if anyone is here for class, here are some Q/A that I had. 1. How many ancestral species from South America got to the Galapagos islands and evolved into the 13 species of finches that exist there today? What evidence supports your answer? There is said to be only one, this is said because they have more in common with each other than they do with the same genus on the mainland, which makes us believe they all ended up evolving from 1 species of bird. 2. On a small island (Daphne Major) that had a few good years, an 18 month long drought that began in 1977 affected the medium ground finches. What percent of medium ground finches died that year? Why were so many finches dying and what characteristic was more common in surviving medium ground finches than in the ones that died? The birds with the smaller beaks had the most amount of trouble because they could not eat the larger seed while the birds with the larger beaks were able to eat the larger seeds. About 80% of the medium ground finches died. 3. How did the next generation of ground finches change from the previous generation? Why did this happen? The next generation had about a 4 percent change in their beak depth. Their beaks got even bigger since the surviving ones mated, making their bigger beak genes combine and giving their offspring big beaks as well. This is due to natural selection. 4. In 1983 a strong El Nino climate event brought much more rain than usual to Daphne Major island. Then the drought returned 2 years later, but the seeds left by the dying plants were different from the drought in 1977 because the dominant plant species that grew before that drought were different from the plant species that dominated before drought after the 1983 rainy spell. How were the seeds of the dominant plants different than before and how did that affect beak size in surviving ground finches during the drought 2years later? The seeds which were larger became more and more scarce, while the smaller seeds were more available. The birds with larger beaks had trouble picking up the smaller seeds produced by the vines. This affected beak sizes by making them smaller since they were the ones who survived. This is due to natural selection, once again since the birds with bigger beaks died out. 5. Which 2 characteristics keep the different finch species from interbreeding with each other, thus helping to keep the species separate from each other? One of the characteristics is that they all sing different songs, which helps them differentiate from each other. They are also able to differentiate via the looks of the other species in the sense that the cactus finch would only pay attention to birds that looked like them and their species, and pay attention to no other birds. They were able to differentiate via beak size and body size. This is how they were able to stop from mating with each other.

By what mechanism did the first post-El Nino birds produce a 4% increase in beak size?

we're really all living the same lifes out here, doing our science hw and such

I’m enjoying this

This is really interesting.

What is the mystery of mysteries? 2. How long did the Grants study on Galapagos island? 3. What did they study? 4. How did these islands form? 5. How many species of finches are there? 6. What did they eat? a. warbler b. woodpecker c. cactus finch d. large medium small finches 7.. Fnish this quote "Right tools for the _______________ ______________. 8. What did DNA reveal? 9. How did Grants gather data of the birds? 10. What type of science investigation is this? 11. What do we know about 5960? 12. What happened in 1977? 13. Which birds had the most trouble surviving? 14. What trait made the greatest difference in survival?

Anyone else watching this because your teacher assigned it and it’s supposed to help you with your science test?

POV: You're looking in the comments for answers

This channel is very useful for watching about animals & birds, I like to watch videos about animals, birds,fish,insects etc, the creation of video is very very nice, I expected more good videos from this youtube channel, thank you .

ya'll who are here willingly are a different breed

Biology class anyone?

My science teacher sent me. Learning about adaptations.

Fantastic photo journey

hello AP bio kids

shoutout to env100

so inspirational

X-ray astrophysics student that on the side reads every two weeks one book on Evolutionary theory...today I'm starting Jonathan Weiner's " The Beak of the Finch "...so here I am getting visuals for the book.

what is the “mystery of mysteries” that a question i have!? from school

I learned that the beak of finches had evolved throughout time the period... and the natural selection made them adapt to their environment that they live in

These island are still really unique place for biologists, entomologists and zoologist.

we had this example in our ecology textbook. I wish I had watched this video while I took that class.

While watching this video, a bird started singing outside my window that sounded a lot like the cactus finch. haha