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The seeds of speciation [The Molecular Ecologist]

par Frédéric Magné - publié le

You don’t have to get very far into an evolution textbook before you bump into Darwin’s finches, the birds descended from South American finches that colonized the Galapagos Islands and “radiated” into an array of different species, each with a beak adapted to different food sources across the archipelago. Another, equally interesting case of avian adaptation is found in North America, on a different sort of archipelago. It’s found in patches of lodgepole pine forest that cloak the slopes and foothills of the Rocky Mountains, in the hooked beaks of red crossbills.

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