A Baboon that Has Learned to Count
Cowboy the batoon has learned to count——at least when he is hungry.Dr.Jack Findley of the University of Mary land has taught him to recognize five colors of lights；each light stands for a certain number of beeps from a sound box.
When Cowboy turns on a light by pushing a button, the box begins making beep tones——the number of beeps.Cow-boy must count is determined by the color of the light.When the correct number has sounded, Cowboy pushes a second button.This stops the sound and releases a food pellet.If he pushes the button too soon or too late, Cowboy doesn't get any food.
Cowboy is required to keep track of only five signals now, but he may have to think harder soon.Dr.Findley plans to shine two lights at once, and to require the baboon to push the button when the correct combined number has sounded.
If Cowboy is able to do this, he will have learned how to add.