Fred Langa: BBC - Earth News - Bonobo chimps filmed shaking their head to 'say no'

Bonobos have been filmed appearing to 'say no' by shaking their heads, report scientists.

On a number of occasions, bonobos were filmed using side to side head movements to prevent others from doing something they did not want them to do.

In one film a mother is seen shaking her head to stop her infant playing with its food.

This may reflect an early precursor to head-shaking behaviour amongst humans in one of our closest relatives.

Fred Langa