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Author Topic: Dinosaur evolution - were they warm blooded ?  (Read 19218 times)

Offline Exodus

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Re: Dinosaur evolution - were they warm blooded ?
« Reply #25 on: 28/04/2005 08:01:52 »
True Isambard... and to add another cog to it.... Birds are true desecendants of the Ornithischian Dinosaurs... and they are warm blooded. I think this is an important aspect to address.
 

Offline rahonavis

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Re: Dinosaur evolution - were they warm blooded ?
« Reply #26 on: 23/05/2005 14:58:41 »
I'm afraid that's not true. Birds are dsscended from Saurischian (lizard-hipped) dinosaurs, not Ornithischian (bird-hipped)dinosaurs; confusing I know! Ornithischians' hips only superficially resemble birds' hips.

But I agree that Ornithischians may well have been warm-blooded too. Another possibility is that dinosaurs were heterotherms; a sort of halfway house between 'warmbloodedness' and 'coldbloodednes'.

 

The Naked Scientists Forum

Re: Dinosaur evolution - were they warm blooded ?
« Reply #26 on: 23/05/2005 14:58:41 »

 

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