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The gecko lizard can walk across your ceiling upside-down without falling off. How does it do tills? Until a few years ago scientists did not know, though they proposed several conflicting theories.
If bats evolved, from what did they evolve? Would you believe the shrew?
Darwin saw no problems with giraffe evolution. However, he was not aware of certain problems peculiar to giraffes which make his easy assumption of giraffe evolution even more difficult to accept.
The fact is, however, that it has been proved in many cases that homologous structures are not produced by homologous genes!
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