Urinating chimp 'replays' fable

Chimps have "replayed" an ancient fable, a team reports in the journal Plos One.

In Aesop's 2,000-year-old tale, a crow uses stones to raise the water level in a pitcher to reach the liquid so it can quench its thirst.

But when given a similar set up, chimps were able to attain an out-of-reach, floating peanut by taking water from a dispenser and spitting it into a vertical tube.

This hungry chimp went even further though, by urinating into the vessel to get hold of the prized snack.

Footage courtesy of the Max Planck Institute for Evolutionary Anthropology