Monkeys apparently don't need a math class to get the gist of geometry. A new study in the Proceedings of the National ...

Baboons and macaques appear to use some of the same mental strategies as humans when matching shapes, suggesting that the ...

Our geometric intuition, long considered something that sets us apart, seems to be shared with other primates.

(Cavan Images/Raffi Maghdessian/Getty Images) If you've ever gone hiking and reached a fork in the trail, you may be ...

Testing 79 adults from Bolivia’s indigenous Tsimane’ farmer-forager population, who do not undergo formal U.S.-style ...