Chimpanzees and orangutans remember distant past events

Chimpanzee, Chimpanzees, Monkey,

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Both species found where a useful tool was hidden three years after performing a task only four times.

src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiPtKcrCVi1iZ8xLRlouKWCVzsQiuMryJBt9gyoE4oqYbXldalRt9R0SBsmy8cY-LLQjxzZGnylIzxyBvUJXUODyhvthC_QVmhc98j26pfrTNaylNhL01riLDhGRh2u3OIVrApKaj9U6BU/s320/Chimpanzees+and+orangutans+remember+distant+past+events.jpg" width="320">They were also able to recall a unique event two weeks later.

The team say their work, published in Current Biology, shows memory for past events is not unique to humans.

Source: Here