To: Gladwin
What survival function could a partially formed wing provide a bird? It's not logical to assume a useless appendage would keep developing over hundreds of years. A part wing is no wing.
35 posted on
02/02/2002 7:58:17 PM PST by
GOPJ
To: GOPJ
I think the argument above is that the "wings" were originally prehensile and covered with feathers for warming the bird eggs. The gliding ability became more and more important and turned into true flight.
36 posted on
02/02/2002 8:13:05 PM PST by
Gladwin
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