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Dinosaurs: Warm Blooded ...

"... versus cold blooded. A scientist looks at the notion that dinosaurs may have been warm blooded, and if so, the potential that they may have survived the ice age of 2 million years ago. Video from BBC show Horizon - My Pet Dinosaur."

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15 Comments

Current View: 15 / Show all Comments

bm28651 : LVL 33: VP 4.2: said:

bm28651

Hidden (Show Comment) -17 votes

247 days 14 hours ago...

I will believe this when dinosaurs can fly. Which they can`t.

fatninja : LVL 38: VP 4.6: said:

fatninja

9 votes NegativePositive

247 days 8 hours ago...

I`m pretty damn sure there were flying dinosaurs like maybe a pterosaur.

bm28651 : LVL 33: VP 4.2: said:

bm28651

Hidden (Show Comment) -14 votes

247 days 7 hours ago...

@fatninja

Pterosaurs are not dinosaurs. Dinosaurs are terrestrial beings. Archaeopteryx was the closest dinosaurs ever got to flying. Of course this was when dinosaurs started to evolve to birds.

blue_devil : LVL 42: VP 5: said:

blue_devil

2 votes NegativePositive

244 days 23 hours ago...

wiki says : Pterosaurs are the earliest vertebrates known to have evolved powered flight. Their wings were formed by a membrane of skin, muscle, and other tissues stretching from the legs to a dramatically lengthened fourth finger. Early species had long, fully-toothed jaws and long tails, while later forms had a highly reduced tail, and some lacked teeth.

ShitmanFu : LVL 43: VP 5: said:

ShitmanFu

-3 votes NegativePositive

243 days 16 hours ago...

Dinosaurs evolved into birds, and bird evolved from dinosaurs. End of story

ieatpinkmuff : LVL 20: VP 2.9: said:

ieatpinkmuff

Hidden (Show Comment) -11 votes

243 days 14 hours ago...

^but what did man evolve from? Dont even say monkeys because thats not an option, so what else?

Cahu : LVL 38: VP 4.6: said:

Cahu

4 votes NegativePositive

243 days 12 hours ago...

I wish the Megalodon still existed - those fuckers ate whales!

raithios : LVL 34: VP 4.2: said:

raithios

0 votes NegativePositive

243 days 11 hours ago...

pffft

groovyRED : LVL 14: VP 2.3: said:

groovyRED

10 votes NegativePositive

243 days 10 hours ago...

she`s hot :)

Katsuro : LVL 29: VP 3.8: said:

Katsuro

4 votes NegativePositive

243 days 8 hours ago...

Why did bm28651 get voted down in his second comment? He happens to be correct, pterasaurs were not dinosaurs. Dinos were land animals only. Yet fatninja gets voted up when he is completely wrong.

What the hell is wrong with you people? Don`t like facts or something?

Here, from Wikipedia:

"dinosaurs (aside from birds) can be generally described as terrestrial archosaurian reptiles"

"Many prehistoric animals are popularly conceived of as dinosaurs, such as ichthyosaurs, mosasaurs, plesiosaurs, pterosaurs, and Dimetrodon, but are not classified scientifically as dinosaurs."

Ignorance is excusable, but refusal to learn the facts or refusing to accept the facts when they are presented to you is not, nor is down voting someone for stating those facts.

Christ this place gets more and more like a religion everyday.

Edit: I expect to get voted down. But know this - doing so merely confirms what I said about the Spiked users who voted on the comments for this video.

Vizreel : LVL 41: VP 4.9: said:

Vizreel

-4 votes NegativePositive

243 days 8 hours ago...

^here`s why I voted you down:
"Here, from Wikipedia:"

end of story

Katsuro : LVL 29: VP 3.8: said:

Katsuro

4 votes NegativePositive

243 days 8 hours ago...

@Vizreel

Don`t like Wikipedia? Fine, go look the information up for yourself from another source. You`ll find I`m still right.

With the internet and libraries you have no excuse.

Not happy with my Wiki quote, how about the London Natural History Museum (http://www.nhm.ac.uk/nature-online/life/dinosaurs-other-extinct-creatures/


non-dino-reptiles/flying-reptiles/index.html)?

"Contrary to popular belief, Pterosaurs are not dinosaurs."

Don`t trust the English? What about the American Museum of Natural History (http://www.amnh.org/exhibitions/dinosaurs/extinction/finaldays.php)

"Th


e flying reptiles named pterosaurs are not dinosaurs or birds."

That took me like 10 seconds to find.

Douchebag.

Edit - the fucked-up formatting of my post is Spiked`s doing, not mine. Don`t know why it`s doing it, I`ve tried fixing it like 5 times.

PokeyGorilla : LVL 28: VP 3.7: said:

PokeyGorilla

3 votes NegativePositive

243 days 7 hours ago...

Several years ago they were able to x-ray some T-rex eggs and discovered that they had 4 chambered hearts. A quick bio lesson, reptiles only have 3 chambered hearts thus suggesting that they were indeed warm blooded. Thought this was old news

EckJerome : LVL 41: VP 4.9: said:

EckJerome

1 votes NegativePositive

243 days 1 hour ago...

^ *heavy sigh*

NO!!! They didn`t "x-ray some T-rex eggs." We`ve never found a T-rex egg!!!!

Again, as Katsuro pointed out, ignorance is excusable, but why do you guys continue to flaunt yours at every opportunity??? Oh yeah, you half-remember some little factoid you heard on TV and then try to repeat it here completely unaware that you`ve botched it to hell.

So, yes, we have found fossilized dinosaur eggs...but not T-rex eggs. I`d have to verify the four-chambered heart thing, so I`ll end my rant there. Besides, we have a lot more evidence than that for warm-blooded dinos.

The other thing most laypeople are completely unaware of is that dinosaurs were an EXTREMELY diverse group of animals. Some of them were most assuredly cold-blooded, especially the early dinos of the the triassic era...of this there is little doubt. On the other hand, the therapods (dinos such as velociraptor and troodon) show a lot of evidence of having been warm-blooded.

And as for birds evolving from dinos...yes, it`s quite likely indeed. Though, again, few people are aware that the evolutionary branch occured very early in dino history. Birds did not descend from T-Rex or velociraptors...rather they all evolved from a much more distant ancestor in the vicintiy of archeopteryx on the tree of life.

Ironically, the pterosaurs aren`t really related to birds at all.

Dusma : LVL 42: VP 5: said:

Dusma

0 votes NegativePositive

242 days 15 hours ago...

Heres the thing.... we know at least some of the dinosaurs survived the ice age. Don`t know why or how, but i`m not going to debate it. If some dinosaurs evolved into birds(which is highly likely) they had to survive to evolve. Also I believe the crocodile family has been around and hasn`t changed much since that time, except to grow smaller and perhaps a few other adaptations.

SO... dinosaurs DID survive to evolve and it is entirely possible and likely with the diversity of the species` that there were instances of warm-blooded dinosaurs. I would be not be surprised in the least.

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