Darwin's Finches, Threatened by Blood-Sucking Maggots, Get a Helping Hand
On the Galapagos Islands, Darwin's finches – the tiny birds that helped inspire Charles Darwin's theory of natural selection – are getting a life-saving assist by man. In the image, a finch pulls a cotton ball treated with insecticide from a dispenser set out by scientists. When the birds use the cotton in their nests, blood-sucking fly maggots are killed,