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Ring-tailed lemur

Victoria Gill

Science reporter, BBC News

Primates are facing an extinction crisis, according to researchers who have found that 60% of species are under threat.

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Primates 'sliding towards extinction' say scientists

A report says that 60% of the world's primate species are under threat of extinction.

"It's really about these old mothers competing with their daughters" - Prof Darren Croft

By studying the long lives of killer whale families, researchers say they have solved the evolutionary mystery of the menopause.

Critically endangered chimpanzees in the Ivory Coast craft extra-absorbent drinking sticks, remote cameras reveal

Critically endangered chimpanzees craft absorbent drinking sticks, remote cameras reveal.