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Re: How Did Hadrosaurs Survive? (Was: Hadrosaur "mummy" questions)

On Sunday, October 27, 2002, at 12:55 AM, Tim Donovan wrote:

By running away, but not hadrosaurs could escape a new predator with consummate senses and speed.

We do not know how fast tyrannosaurs could run, and we do not know how fast hadrosaurs could run. Short legs does not = slow.

Besides, the important thing for predator is MATCH it's prey's speed, so that it can aim it's bite. Hadrosaurs _may_ have been slower, but twisting and turning would make it very difficult for a tyrannosaur to land a bite. Cheetahs don't do that well, despite their superior speed; mostly because of the twists and turns of their prey . Tyrannosaurs would have had incredible inertia, and may not have been able to accelerate/decelerate as quickly as hadrosaurs. Matching the hadrosaurs speed for speed, turn for turn, may have been very tricky.

As for big _Tyrannosaurus_ killing all the duckbills; need I mention the Nemegt? _Tyrannosaurus_, and _Saurolophus_ as the most common multi tonner, as I recall. Think outside of the North America. :-)

John Conway, Palaeoartist

"Do I contradict myself? Very well, then I contradict myself, I am large, I contain multitudes." - Walt Whitman

Systematic ramblings: http://homepage.mac.com/john_conway/
Palaeoart: http://homepage.mac.com/john_conway/_palaeoart.html