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Trunk calls 鈥� how Elephants know who's calling

How elephant families know who's calling and how to react

New study of the meaning of elephant calls by the Amboseli Elephant Research Project in Kenya. Viruses helping researchers plot the path of human evolution. How, in evolutionary terms, the human breast gained its shape because of its appeal to infants, not men. Heavy-weight collisions in space might forge the heaviest elements.

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26 minutes

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91热爆 World Service Archive

This programme was restored as part of the World Service archive project

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