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CJ Cregg
Commodore
Joined: 05 Oct 2002
Posts: 1254
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 Sun Nov 19, 2006 10:08 pm 'Lizard Isles' reveal natural selection at work |
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| Quote: | 'Lizard Isles' reveal natural selection at work
Natural selection, the keystone of evolution, can switch direction in a matter of months, a novel experiment on lizards reveals.
Jonathan Losos at Harvard University in Cambridge, Massachusetts, US, and colleagues visited a dozen tiny isles in the Bahamas. They tagged hundreds of tiny Anolis sagrei lizards, which show natural variation in the length of their legs.
In half of the islands, they introduced a larger lizard species, Leiocephalus carinatus, which preys on A. sagrei.
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How incredibly fascinating! Don't you just love science, i do!
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