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Re: Vegavis gen. nov. - new anseriform in today's Nature




On Fri, 21 Jan 2005, James R. Cunningham wrote:

> Not quite as badly.  Birds should able to cover more ground per unit
time in their
> search for food, which would give them a distinct survival advantage
over other
> dinosaurs during a time of food scarcity or other environmental stress.

OK.  Then why didn't other flying creatures make it?  This question
becomes more relevant as more neornithine species are found, because we
are eliminating Feduccia's lucky survivors hypothesis.

> For
> example, you've got a better chance of outflying a forest fire than you
do of
> outrunning it, and African vultures are known to use their additional
speed to get
> to carcasses a few minutes before hyenas (per Pennycuick, the hyenas
keep an eye
> on vultures and follow when they see the latter converging in the air
or
> descending).Jim

Cool!