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The clever calls of nature

Scientists have discovered that birds are capable of recognising calls that other species use to warn each other about predators.

Leopards reveal new insight into primate evolution

Pic caption - (left) the adult leopard male "Cosmos" during a nighly patrol walk. credit: Dr David Jenny. (right) the Diana monkey - one of the species of monkeys under threat of predation by leopards in the Tai Forest. credit: Dr Zuberbuhler.