The origin of feathers remains a mystery

Birds are inextricably linked to feathers, which allow them to fly, keep warm and put on dramatic displays. Feathers, however, predate birds—having first belonged to extinct dinosaurs. Finding out exactly when feathers ...

Earliest evidence for humans in rainforests discovered

Rainforests are a major world biome which humans are not thought to have inhabited until relatively recently. New evidence now shows that humans lived in rainforests at least 150 thousand years ago in Africa, the home of ...

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