Re: Re-emergence of lost features

[bchoo@cyllene.uwa.edu.au (Brian Choo)]

>On Fri, 13 Mar 1998, Phillip Bigelow wrote:
>
>Many hypotheses can be mounted for this extinction.  But birds are
>incredibly evolutionarily maleable.  In light of the low diversity of
>large bodied birds (roughly one type per southern hemisphere continent),
>something more general must be going on.  Whatever this something is, it
>is apparently relaxed on mammal-free islands, eg., elephant birds and moa.

Huh?...then whats with Australasia with Emus, 3 Cassowary species and,
until the Holocene, Mihirungs and giant megapodes?

"We are all Kosh!"
Cheers
Brian Choo