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THE GENIUS OF CHARLES DARWIN -- ILLUSTRATED SCREENPLAY & SCREENCAP GALLERY |
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The next step for Darwin was to realize this --
what makes the difference between success and failure
in the struggle for existence isn't just chance.
All living things vary, even if only slightly.
Darwin realized this was the key.
A tiny variation -- sharper teeth or faster legs,
keener eyes, better camouflage, better sense of smell --
can make a crucial difference in an animal's chances of survival.
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