'Island of Rats' recovers

Along the western edge of Alaska's Aleutian archipelago, a group of islands that were inadvertently populated with rodents came to earn the ignominious label of the "Rat Islands." The non-native invaders were accidentally ...

Birds of a feather do flock together

Nearly 200 years ago, Charles Darwin noted striking diversity among the finches of the Galapagos Islands, and his observations helped him propose the role of natural selection in shaping species. Today, some biologists focus ...

Gentoo penguins are four species, not one, say scientists

Gentoo penguins should be reclassified as four separate species, say scientists at the Milner Centre for Evolution at the University of Bath, after analysing the genetic and physical differences between populations around ...

The first human settlers on islands caused extinctions

Though some believe prehistoric humans lived in harmony with nature, a new analysis of fossils shows human arrival in the Bahamas caused some birds to be lost from the islands and other species to be completely wiped out.

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