Woodpeckers have very long tounges perhaps 10 inches long, often with barbs at the ends for stabbing insects, they often use a glue for the toung to help pullin the insects and a glue sovent in the stomach to unglue the tasty treat and digest it.
Problem... some woddpeckers have tounges that stick out like us form the mouth, and the european woodpecker has a tounge that starts in the throat and wrapps around the back of the head, down the beak and out....
how did it micro evolve
1) created with the tounge wrapped around and micro evolved to have some woodpeckers today with ordingary tounges sticking out
2) naturalist evolution, tounges started as other birds and then went backwards wrapping around th ehead and down the beak and out... and how would a series of gradual changes explain this?
2006-08-12
07:07:48
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3 answers
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asked by
Anonymous
in
Religion & Spirituality