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Re: Feather origin hypothesis (for predator evasion??)



From: "Gordon Martin Human" <t_gmhuman@agency.com>
Sent: Thursday, June 21, 2001 11:50 PM


> Again, why did feathers evolve for brooding only in one (say) species
when,
> judging by the numerous well-organized, open-to-the-elements nests which
> have been found, other species were likely to have been brooding as well?

Consider that these nests could have been open to the elements because they
were covered mounds that had hatched, or been opened by parents or predators
(ie. incubation temperature maintained through insulation or even heat from
vegetation decomposition, rather than brooding)

Adam