Feather Evolution 5of5

[AgApE010]

Why is it that on so many of these evolution documentaries a theist vs. atheist debate breaks out? Evolution has nothing to do with theism or atheism, you morons.

[Mave432]

@Keinlicht Environmental stress can be caused by human or a natural intervention such as pollution, etc. but who designed the way animals/humans evolve in response to the stress? In case of computer simulation the divine power for that computer is human but compared to the complexities in natural evolution, it is still exponentially simplistic and imperfect.

Also it still doesn't answer where did such a thing as a feather come from on a raptor at the first place?

[KKSCJR]

This just excelled my desire to be an Ornithologist... EVEN MORE!

[KadoatieXD]

Even tho I already learned ALL this in wikipedia (and some more) I still wanted 2 watch this program for it's different point of views :D

[USERNAMEfieldempty]

Why is the narrator talking like i'm an ADHD six year old?

[Mave432]

Also who put feathers on the Raptors? lol no answer.

[Mave432]

I believe in evolution but natural selection is not a phenomenon that happens automatically. It's a Devine power that guides the nature to make the selections.

[aknashty]

@Mave432

Wow, well this "devine power" is a sadistic bastard

[Keinlicht]

@Mave432 So then how come "Divine power" is indistinguishable from selective allele variation in populations undergoing environmental stress? Is there "Divine power" in computer simulations of reproduction with variation?

[gsmonks]

@Mave432 Evolution is not a "belief". It's how things work. No "divine" b.s. required.

[TheNarcMan]

Very cool. Like the guy said at the end, there's no need to assume the dinosaurs died out anymore. Some did that couldn't adapt & for whatever reason those that genetically mutated over time to have feathers survived as the ancestors of birds. I wonder what conditions favoured feathers & reduced body mass & eventually the rise of mammals (separate to birds of course) over large scaled creatures who dominated earth for so long? Could feathers have produced a more even & diverse food chain?

[MatchCard]

why so many dislikes... must be creationists/anti-evolution people

[sqccccccccc]

0:15 Miracle Planet 2!

[ieguy3]

When I saw microraptor reports some years ago now, it made perfect sense. Especially, since I've bred pigeons for decades. If you look at many of the muffed breeds, they have "wing" feathers on their legs. We've known that for centuries. If we could sequence microraptor DNA, I'd bet we'd find that the pigeon's muffs are just DNA sequences that have been "turned back on" again.

[snowleopard2539]

I don't think this theory makes any sense at all, it does not sufficiently explain the origin of flight for me, it says some birds with fur started running fast and while they were running grew out feathers? Or they just hopped enough and just happened to have perfectly designed feathers for flight, ya I just don't buy it. Go to my channel!!

[gregrutz]

@snowleopard2539 ''while they were running grew out feathers?"

Why Do people laugh at creationists? LOL

[shinjide213]

it kind of agree with this theory.

[paradisedude1]

What happened to their teeth then? Cause birds don't have teeth, but dinos do

[NUTCASE71733]

@paradisedude1

That's a good question. The closest thing to teeth are the ridges in a duck's bill. Birds still have the genes for teeth they just aren't turned on. I suppose when birds began getting beaks the beak itself became more useful than the teeth

[derickhaywood]

@paradisedude1 quite recently scientists have been able to reactivate a chickens dormant genes so that it grows teeth and a tail. it dies almost immediately but still :) it's all there

[paradisedude1]

For the dinosaurs which developed feathers, what happened to their scales?

[NUTCASE71733]

@paradisedude1

Dinosaurs didn't really have scales, per-say. Skin impressions and rare examples of fossilized skin show that the skin of dinosaurs had a pebbly texture.

[gregrutz]

@NUTCASE71733 Birds still have scales on their legs. Birds are dinosaurs.

[NUTCASE71733]

@gregrutz

I never said they weren't but yeah, you're basically right.

[leananshae]

So birdwatchers aren't really goofy geeks... they're actually dinosaur trackers!

[biorobotmachine]

Love this documentary, thank you DJ

[ren1997]

awesome stuff....

[Vamavid]

5:13 !!!

[bshieldsbb01]

Great!

So that means when I wake up in the morning, that's Dinosaur sh*t all over my car.

[FluggleBubble]

@bshieldsbb01 no. it's bird shit. they are descended from dinosaurs. they are not dinosaurs.

[bshieldsbb01]

Well actually, no, that's the whole pont of this documentary and the findings of paleontologists in the the phylogeny of vertebrates.

If Birds are descended from Dinosaurs then cladistically Birds are Dinosaurs (technically Dinosauria), the same way that Humans are Mammals.

[norcofreerider604]

@FluggleBubble Watch Aronra's video "10th foundational falsehood of Creationism" on Cladistic Phylogenetics and you'll find out that a species cannot leave it's parent clade, and will always be a member ofa subset of that clade. Even if birds were to loose certain features that make them what we consider "birds" (and therefore evolving into something else), they would still be Aves. So basically, once a dinosaur, always a dinosaur.

[mikebe41]

The only thing that I didn't like about Jurassic Park movie, they made all the dinosaurs fully grown in like 3 years of the story line of the movie, and it takes like 10-20 years for some dinosaurs to fully grow

[NUTCASE71733]

@mikebe41

It's been established dinosaurs grew at a fairly fast rate. besides the dinsaurs in the movies were clones so it's likely they were given growth-inducing hormones. But a park of that magnitude would take many years to build, so the dinos likely were 10 years old by then.

[jrblack83]

Why don't the mention triassic Protoavis? It was more bird like than Microraptor or Archaeopteryx... and it lived millions of years before them!

[chobochotch]

@jrblak

if im not mistaken protoavis is the specimen that was found in texas, it is very controversial as there were no feathers, just nubs on the arm bones that appear to be where feathers would be attached

also the bones were not all together and some scientists believe the bones are from 2 or more organisms mixed together

[celtbard]

So...AIG, kent hovind, PCS et al had it right...dinosaurs and man did (and still do) live at the same time.

Of course, they still have their overall time-scale completely ucked fup.

[ren1997]

by the same concept, men are after all monkeys.

[CommanderSquidlet]

There really is something quite satisfying about being able to say, "there's a dinosaur on the lawn!" whenever a sparrow or robin stops by. X3

[poorkinghaggard]

Growing smaller would indicate that they became the hunted, since being smaller is more of an advantage to something that wants to avoid being caught.

Therefor, it seems reasonable that they grew from the ground. While being chased, feathered creatures could leap into the air into trees and bushes.

[Xsublime28xX]

great new discoveries!!You creationists keep living in denial

[hindigwapo]

God made the big dinosouars as small as birds and chicken to allow humans to live in his kingdom.

[Albukhshi]

LOLZ

no he didn't.

[MatchCard]

i just sprang an idea, where does the terradactyl fit into all of this, if it does at all?

Anyways, it was an informative watch.

(Take that creationists)!!

[djarm67]

Pterodactyls were a type of pterosaur. These flying reptiles shared a similar archosaur heritage to dinosaurs but were not dinosaurs themselves. Birds are not descendents of pterosaurs.

[lay123]

@MatchCard pterodactyls are actually called pterosaurs and they were flying reptiles. Different from dinosaurs because a dinosaur had a peculiar upward stance. Although its ancestors developed flight on their own before the ancestors of birds did! They did sport some form of pycnofibres that should have been mentioned.

[MatchCard]

@lay123 Took two years for someone to tell me lmao, thanks

[sorienor]

That was amazing! Knowledge moves forward, at a pace almost impossible to stay up with.

[infinitusverum]

Excellent upload.

Truly brilliant.

[elegantmoose]

I love the cheesy puns the narrator comes out with every minute.

[jimrbsn]

The fossil record has countless more things for Science to ponder and wonder at.....and discover..... unlike some other approaches to understanding the world.

[luvismyreligion]

Brilliant series! Ur a Prince for posting them. Thank you! xOxOxO

<3 <3 <3

[generaleskimo]

No, there are THREE views on how flight developed:

1. Tree climbing dinosaurs which glided

2. Fast runners which jumped short distances

3. Magic man did it

[papasitoman]

I choose number three!! All those fossils and "experts" and "scientific evidence" is no match for good ol' magic!! Now I must flee on my magic carpet. Good day to you!

[generaleskimo]

Your right, and it explains all the evidence! Think about it... when we find evidence on the subject, what explanation will always explain it? Obviously it's "magic man made it that way". Transitional fossils? Magic man made them that way. Genetic markers? Magic man made it that way. It is so simple!

[WilkyMay609]

Ouch! Another slap to the side of the head for the Creationists.

[Chick6517]

I don't know the original message your responding too, but if you think about it, in some situations, that's the best choice.

[Saukko31]

Fascinating, thanks for uploading.

[ArtsySiridean]

Thanks for sharing, DJarm. A good find indeed.

[Puchicas9]

T-rex had feathers? Phenomenal!

[djarm67]

T-rex itself didn't have feathers. However, a smaller Tyrannosaur species Dilong, had primitive feather-like structures.

[IdoloR]

i much prefer the British BBC style to documentary

cool to watch regardless, good upload :D

[lennyhipp]

From your video description:

"Every home should have the Discovery Channel."

That's CLEARLY the science channel logo watermarked in the upper right! That's the channel every home should have.

Discovery Channel is a promoter of nonsense...

A Haunting

Ghost Hunters

Unexplained Mysteries

Many other pseudo documentaries that give never investigate extraordinary claims.

etc.

Don't get me wrong, they DO air a lot of great documentaries too, but a few bad apples DO spoil the bunch!

[kcolumbusgirl]

I agree - They're frustrating me with all the non-science BS lately. :(

[ArtsySiridean]

Wait till you see the "paid programming" parts they show throughout the day. It'll make your blood boil.

[kcolumbusgirl]

Luckily I work all day and tend to not watch TV on weekends - but my husband watches the Ghosthunters BS. It reminds me of the Blair Witch movie. LoL

[djarm67]

Over here it's Discovery Science. There are about 5 channels under the umbrella of the Discovery Channel

[lennyhipp]

"Over here it's Discovery Science. There are about 5 channels under the umbrella of the Discovery Channel. learn something new every day, on their website now.

huh... didn't know it was the same parent company. I stand by my earlier statement though... Science channel is heads above the Discovery Channel as far as legitimacy goes.

Does Discovery Science show programs like Brink? Do you have a separate Discovery Channel that shows things like Ghost Hunters and Unexplained Mysteries?

[djarm67]

It used to be a bit of everything good and bad on the one channel. Now there's much more separation but there are still good programs on all.

[Toledosteal]

COOL! I would like to see a T-rex with some intact skin to prove that it had feathers (also to see what it would look like) because that would be awesome.

I love when science messes up all your preconceptions of life and the animals who came before us. 5 Stars.

[buzzausa]

Fascinating. Great video.

[unixhead101]

Excellent series.

[Zygorhiza]

I was waiting for this, thanks !