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Unformatted text preview: Although this sketch of the theory was already in place in Darwin's notes, in 1854 he was still struggling with a few pieces that he had yet to make sense of. One had to do with the population of islands like the Galapagos. According to his theory, animals and plants had arrived on the islands millions of years before and had slowly adapted to fit the unique environments on each island. But how had they gotten there in the first place? He was unwilling to accept the possibility that these volcanic islands had once been closer to the mainland of South America. Instead, he tried to prove that seeds and even eggs might have been transported on ocean currents from the mainland. He conducted experiments: soaking seeds in salt water for weeks to see if they would still germinate (most did) and figuring out which seeds would float (most didn't). The second germinate (most did) and figuring out which seeds would float (most didn't)....
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This note was uploaded on 12/13/2011 for the course ART 2313 taught by Professor Staff during the Fall '10 term at Texas State.
- Fall '10