Feather Evolution 1of5

[AgApE010]

I just finished watching this and it is a really good documentary. Don't be thrown off by the number of dislikes from Creationist votebots.

[rossini55]

Interesting vid. Dont like the way the narrator uses the words 'design' or 'engineered'. Could be construed as an allusion to ID.

[djarm67]

@doomsword86 Creationists

[snowleopard2539]

gave sum factsabout feathers and pointed to archeopteryx, better luck next time!! haha

[snowleopard2539]

Haha wow... Never does it actually explain the origin of these feathers. All that this video does is explain what a feather is in detail, point to archaeopteryx and says birds came from dinosaurs, "there is a groundbreaking discovery" BUT IT ACTUALLY SAYS NOTHING, I thought it would actually give some evidence not just wat isn't actually evidence that is archeopteryx, this is funny cuz it just says work is being done an the secret behind the origin of feathers is revealed but it wasn't, it just

[russpaxman]

Absolutely fascinating, very well put together and ground breaking. not a new idea but the best constructed series I've seen on this subject.

[pokon5]

4:35 hhhhh LOL

[ManlySlut]

apatosaurus = brontosaurus

brachiosaurus is a different species altogether

[Rationalific]

As "aquishix" said earlier, "Apatosaurus" is also known as "Brontosaurus", not "Brachiosaurus".

[mikebe41]

I want a Trex canary

[devotedpupa]

aside from this guys getting mayor boners from birds or "dinosaurs" this video is amazing

[NexIuguolo]

hahah at least he's passionate and not apathetic

[aquishix]

It sounded like the narrator said that apatosaurus was the same as brachiosaurus...oops?

Skip to 10:12 or so to listen.

[evilotakuneko]

Sure did. Narrator probably meant to say brontosaurus.

[gregrutz]

@evilotakuneko 'brontosaurus' is not used any more. No such thing.

[pienipaha]

When was this uploaded? I have had this on my channel for 9 months.

[JohnTraviss]

Hey, no harm right?

[pienipaha]

No. I just personally have not uploaded about a doze videos I intended to because they all ready are upped. I really don't care if someone ups something I all ready have upped before.. just wondering :)

[djarm67]

The lineage which led to birds began prior to the Yucatan collision and continued after it.

[WilkyMay609]

ahhhhhh, I see said the blind man.  Thanks!

[WilkyMay609]

A meteor hit the Earth 68 million years ago, causing the dinosaurs to become extinct. How could birds evolve if the dinosaurs were wiped out?

[mattyabsley]

WilkyMay609, "dinosaurs" as in every single one of them were not wiped out completely. Many species of dinosaur went extinct, but others were not really affected, such as crocodile ancestors etc that lived mainly in the water.

[WilkyMay609]

With that being true, coupled with all the diversity we see today, I am even more astounded at the power of evolution. Thanks for shedding some light on my question.

[herzogf22]

Thanks for the upload! excellent video!

[aadoza]

So if birds are also dinosaurs, then why aren't other animals also dinosaurs?

[djarm67]

Because they are not phylogenically in the same nested hierarchy. Think of it in terms of subsets. Each subsequent classification is still a member of the previous one.

We are humans. We are also (amongst other groupings) primates, mammals, tetrapods, vertabrates, chordates, triploblasts, bilatera, eukaryotes etc.

[aadoza]

I'm quite ignorant when it comes to in depth biology. Which is also the reason why I'm asking about this.

But the whole point of my comment was really to say that if we call birds dinosaurs because the ancestors birds lived in the dinosaur age. Surely there must be some sort of primate ancestor which also lived in the dinosaur age? Many animals today have not evolved much since the dinosaur age, crocodiles I believe, but we don't call them dinosaurs. Or do we?

[aadoza]

"in depth biology" - or whatever...

[aadoza]

en . wikipedia . org/wiki/Mammal

Quote from the wiki, 3rd paragraph.

"poo face the 3040-millimetre (1.21.6 in) Bumblebee Bat to the 33-metre (110 ft) Blue Whale,"

Erm, someone fix it? :P

[djarm67]

Birds are not dinosaurs because of the dinosaur age. All the evidence suggests that they evolved "from" manoraptoran dinosaurs. Based on the way that nested hierarchies work, this means that birds and anything that evolves from them in the future, will also still be manoraptoran dinosaurs. Dinosaurs and crocodiles are both evolved from earlier archosaurs, not one from the other. These both evolved from earlier diapsids. Mammals on the other hand evolved from earlier synapsids.

[aadoza]

Cool, thanks for the prompt response, I'll wiki all of this.

[djarm67]

I should clean up my spelling then.

maniraptoran

[patrickledford420]

@aadoza its because there derect decendants were dinosaurs crocodiles derect ancestors were reptiles and dinosaurs evolved from reptiles

[papasitoman]

Birds are not really 'mammals.' The BASIC definition of mammals is that we all have nipples/breasts and can lactate. No bird or reptile has nipples or breasts. Also, birds carry the genes for making razor sharp teeth once used in their ancestors; (these genes are 'turned off.' Plus, their 'feet' are pretty damn close to other reptiles.'

[ReeT0ric]

"Birds are not really 'mammals.' The BASIC definition of mammals is that we all have nipples/breasts and can lactate. No bird or reptile has nipples or breasts. Also, birds carry the genes for making razor sharp teeth once used in their ancestors; (these genes are 'turned off.' Plus, their 'feet' are pretty damn close to other reptiles.'" Where does djarm say that birds are mammals? In fact if you read his response to the parent properly then the explanation is staring you in the face.

[papasitoman]

??

Well, as you obviously made the simple error of not noticing that I wasn't replying to DJARM but to aadoza I will not call you any names.

[ReeT0ric]

Fair enough - my sincere apologies. I plead a defence of bad nesting in the comments (that's youtube's fault). What made me reply to you was this: "Birds are not really 'mammals.' " and I didn't know why you;d written it. My bad. On another point, I find it interesting that a colloquial saying over here is "as rare as hen's teeth" - seems science could make them quite common ;)

[luvismyreligion]

If I could go back in time, the Dinosaur Age would be my 1st choice. What an exciting period in history! : )

<3 <3 <3

[Nilopollis]

you would probably get high on the oxygen content of the atmosphere and introduce bacteria and viruses that would cause a few extinctions, but yeah i would want to go too.

[TheGreatSimonski]

Thank you for this fascinating upload :D

The voiceover guy must EAT cigars to get a voice like that!

[wolfeedarkfang]

LMAO yea. He should replace the dead guy who used to do the voice overs for action movie commercials. :D

The "In a world, where men fight for survival" guy. :)

[UppruniTegundanna]

Ha! Reminds me of the description of Tom Waits' voice: "like it was soaked in a vat of bourbon, left hanging in the smokehouse for a few months, and then taken outside and run over with a car."

[ReeT0ric]

Either that or he gargles with gravel...

[k87jury]

Thank you for this.

[FullOfFail]

Interesting.