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Re: Turtles and dinosaur predators (Re: Oviraptorids as Parrots?)
On Sun, 05 Feb 2006 14:55:18 -0800 (pst), Phil Bigelow wrote
> To a tyrannosaur, chasing and eating a land tortoise is like a human
> running-down and eating a pie that is sitting on a picnic table.
> How did these (relatively immobile) land creatures avoid predators
> with a bite force of over a ton per square inch?
Sam Neil wandered about the Cretaceous landscape, telling the tortoises
to 'stand still'. :)
Seriously -- you might as well ask how ostriches ever manage to incubate
their eggs, or how new-born gazelles don't all get found and eaten by hyenas.
Predators tend to be pretty thin on the ground, so when you're a small(ish)
animal in a big landscape, the chances of a predator happening to cross your
path is probably fairly small. If the prey species in question happened to
look a lot like a rock, and spent a lot of time staying still, even a
Tyrannosaur who's vision isn't based solely on movement (ie. almost certainly
all of them) might not notice the tortoise.
GIS / Archaeologist http://heretichides.soffiles.com
Melbourne, Australia http://www.geocities.com/dannsdinosaurs