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Orangutans learn to trade favours Orangutans can help each other get food by trading tokens, scientists have discovered - but only if the help goes in both directions. Researchers from the University of St Andrews found orangutans could learn...
Tags: orangutans, st andrews university, tokens, non-primate animals
Biologists from the University of St. Andrews report that orangutans are capable of exchanging tokens to acquire food for each other. The discovery is being hailed as the first demonstration of "calculated reciprocity" in non-human primates. The most...
Tags: orangutans, experiment, bananas
Whistling at a pretty girl or for hailing a cab or even for carrying a tune has always been a human domain. But recently an orangutan’s spontaneous whistling only after hearing a caretaker make the sound shocked scientists at Great Ape Trust...
Tags: orangutans, great apes, chimpanzee, whistling, evolution of speech
Despite their reputation as lovers, not fighters, of the primate world, bonobos actually hunt and kill monkeys, German researchers said Monday. Their findings, the first direct evidence of monkey hunting by the so-called "hippie" apes, show that such...
Tags: orangutans, chimpanzee, great apes