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Re: Cursorial adaptations (was T.rex and elephants)
Michael Teuton wrote:
> > > Why would prey necessarily be slow? Rhino are not slow nor unagile
> > > and are comparable in size to triceratop(what's the plural?).
> > How many thirty foot rhinos have you run into lately? Estimates I have
> > handy on its weight put it at around 10-11 tons; given that it's a big,
> > wide, graviportal animal (I think? Someone correct me here . . .)
> I'd say 2 tons for a centrosaur and 5 for triceratops. That puts them
> in rhino and hippo league roughly. They have the bone and tendon/muscle
> attachments to run, IMO.
Hmmm. I'm not sure about your estimates, but then any weights we toss
around are pretty speculative to begin with so I guess yours are as good
as any. Looking at some physical characteristics has left me wondering
whether the comparisons to rhinos are even warranted; they really aren't
built the same. For one thing, rhinos have fore and hind limbs which
are about the same size; the ceratopsians' fore and hind limbs differ in
size by as much as 70%. That does not a good runner make. That
design's too funky for me to seriously speculate on, but I would think
that if they could run they probably couldn't run very fast; certainly
not as fast as a rhino. One of Greg's elephants, maybe. :)
Regardless, I don't think your typical _triceratops_ was any good at
outmaneuvering a big ol' therapod with mayhem on its mind.