'Extraordinary memory' of chimps

Chimpanzees have an extraordinary photographic memory that is far superior to ours, research suggests. Young chimps outperformed university students in memory tests devised by Japanese scientists.

The research, published in Current Biology, suggests we may have under-estimated the intelligence of our closest living relatives. Until now, it had always been assumed that chimps could not match humans in memory and other mental skills.

"There are still many people, including many biologists, who believe that humans are superior to chimpanzees in all cognitive functions," said lead researcher Tetsuro Matsuzawa of Kyoto University.

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