Gorillas, Given a Puzzle, Find Way to Cheat

Gorillas at a zoo in England have demonstrated a distinctly human trait while attempting to solve a puzzle: cheating.    The gorillas were presented with a wall-mounted puzzle that requires the user to guide a peanut through a series of obstacles by poking a stick through various holes. Eventually, the peanut reaches the bottom of the device and drops out.  Some gorillas, however, figured out an easier way to retrieve the nut.    "We've seen...

© La Voix de l'Amérique - mardi 4 décembre 2018