There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the ...

This common cactus-finch, Geospiza scandens, was collected during the California Academy of Sciences' 1905-06 expedition to the Galapagos islands. The Academy houses the world's largest collection ...

Six consecutive droughts is all it takes for a new species of finch to emerge in the Galapagos islands, scientists have said.

After hunting, a Nazca booby returns to its nest near a thicket of prickly pear cacti on Isla Wolf. Scientists have been studying the birds elsewhere on the islands to gauge how long-term changes ...