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Re: Marsupial forelimbs... or rather hindlimbs
On 11/26/07, Dann Pigdon <email@example.com> wrote:
> Also; perhaps live young have an advantage over eggs in some circumstances?
> Most birds have specific requirements for nesting sites, whereas viviparous
> bats can breed just about anywhere there is a surface for their young to
> cling to.
Come to think of it, avians are basally ground nesters -- when did
tree-nesting begin? (And which clade is it limited to?)
T. Michael Keesey
Director of Technology
2894 Rowena Avenue Ste. B
Los Angeles, California 90039