Add Yahoo as a preferred source to see more of our stories on Google. Monkeys use some of the same basic mental strategies as people do to perceive abstract relationships between shapes, a new study ...

With their ability to use tools, remember faces and even learn how to communicate with humans through sign language, nonhuman primates are considered to be among the smartest creatures on Earth.

Monkeys use some of the same basic mental strategies as people do to perceive abstract relationships between shapes, a new study suggests. The findings challenge the idea that humans crossed a sharp ...