Genome reveals three more species of Darwin’s finches
There’s more to Darwin’s finches than meets the eye. Famously, the 14 species found on the Galapagos islands are distinguished from one another largely by differences in beak shape. But the first full genome analysis of the birds shows the approach isn’t foolproof, because some characteristic beak shapes appear to have evolved on two or three separate occasions. Image: David Cook Wildlife Photography
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