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Re: T. Rex, Scavenger



I asked this a while back, and received many interesting responses.

Almost all of them suggested that T. Rex was not a pure scavenger.

As to the statement that the littler scavengers have an advantage,
this does not seem to be the case, except for a mouthful or two.

There was an excellent Nova special on humanity's evolution and
one theory was that Lucy and her descendents became scavengers.

It was tested, after a fashion, by a scientist sitting in the
African wild and going to the kill after he thought it was safe.

It appears that lions get there first (whether they kill it or
just want to steal it), and, as is their wont, make a lot of
noise.  This alerts the littler guys, finally the
buzzards argue over what no one else wants.  By the time the
buzzards got done, there was little left.

So, they figured that four foot humanoids would want nothing to
do with lions or jackals, but might shove away the buzzards.

But, speed mattered, because while the buzzards may be cowards, they
are also numerous and efficient.  What's a humanoid to do?
Humanity's "take" went up after they were able to use rocks to
break into the marrow, because there were usually several good
bones left that the other beasts hadn't yet broken.  That's what
this pretty direct experiement showed.

Anyway, all of that suggests that T. Rex had first place at
any kill it discovered (and, one presumes that dinos could
hear or maybe smell other kills).

By the way, what do we know about dino hearing?


Larry W. Loen (lwloen@rchland.vnet.ibm.com)
Department 52P
IBM   Rochester, Minnesota
         (507)253-3535
t/l      553-3535