Subject:
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Re: Evidence of Warm Blooded Dinosaurs
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Newsgroups:
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lugnet.off-topic.fun
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Date:
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Tue, 25 Apr 2000 03:49:34 GMT
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Viewed:
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246 times
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In lugnet.off-topic.fun, Jeremy H. Sproat writes:
> Jeff Stembel wrote:
> > Anyone interested in Dinosaurs should check this out:
> > <http://www.washingtonpost.com/wp-dyn/articles/A53547-2000Apr20.html>
>
> Oh man, it's funny how the media is taking this as a bold new theory that is
> just now seeing the light of day. Horner, Bakker et al. published their
> thoughts on this stuff -- with much media fanfare -- ten years ago or so.
> Much of the backstory in _Jurassic Park_ depended upon this theory. I did my
> 11th grade English term paper on this stuff in 1989. (I contend then as now
> that dinos in general were decidedly *not* ectothermic. :-)
The article, to me, seemed to be saying that this was the most conclusive
evidence found yet... Of course, I could've misinterpreted it. :)
>
> > Pretty cool, huh? :)
>
> A four-chambered heart? You bet! :-, However, crocs have 4-chamered hearts,
> yet their oxy-rich and oxy-poor blood is still mixed in a most inefficient
> way. Add to that the fact that the alleged fossilied heart is from an
> unidentified specimen. I'm not sure that the 4 chambers can really sway the
> endothermic argument one way or the other just yet.
Unidentified specimen? It is from a Thescelosaurus... The best example yet...
Also, see my post on the other branch of this thread on my theory about the
four-chambered heart. :)
> No, I still base my pro-endothermic opinion from the size and count of blood
> vessels through the dino bones, from the enormous lung capacity they had, from
> the fact that few juvenile dinos are present in the fossil record, and from
> the sheer size that some of them grew to.
If you ever find what the earliest reptilian specimen with a large blood vessel
count in the bones is, let me know. I'd like to see where it fits in with the
theory I presented a couple m,inutes ago... :)
>
> obnotherdinotopic: Brontosauri and related dinos probably gave live birth.
Blasphemy!! Brontosaurs don't exist! :D
Jeff
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Message is in Reply To:
 | | Re: Evidence of Warm Blooded Dinosaurs
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| (...) Oh man, it's funny how the media is taking this as a bold new theory that is just now seeing the light of day. Horner, Bakker et al. published their thoughts on this stuff -- with much media fanfare -- ten years ago or so. Much of the (...) (25 years ago, 24-Apr-00, to lugnet.off-topic.fun)
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