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THE GENIUS OF CHARLES DARWIN -- ILLUSTRATED SCREENPLAY & SCREENCAP GALLERY |
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In nature, it's not like that, of course.
Nobody comes along and says,
"I want one that has a great big, thick beak."
Nevertheless, given that there are tough seeds
that only a thick beak can crack,
natural selection favors those individual birds
that succeed in cracking the seeds
until you end up with this sort of climax beak,
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