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Re: badd birds and all that



In a message dated 95-12-01 20:02:32 EST, PWSPARKS@aol.com writes:

>Perhaps some thinking could be put to why all three vertebrate fliers
(birds,
>bats, pterdactyls) evolved flight. There were also probably mutible insects
>that evolved flight. So this is a function that has been successful several
>times over and maybe there is a common cause why they developed.
>
>

Counting insects, well over half of all land animals can fly.