Birds Fight Alien Parasites: Darwin's Finches Develop Antibodies to Flies, Pox Virus

(PhysOrg.com) -- Unlike Hawaii and other island groups, no native bird has gone extinct in the Galapagos Islands, although some are in danger. But University of Utah biologists found that finches - the birds Darwin studied - develop antibodies against two parasites that moved to the Galapagos, suggesting the birds can fight the alien invaders.

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