Researchers found that New World monkeys can produce extreme yodeling-like sounds by rapidly switching between their vocal folds (for low tones) and specialized vocal membranes (for high tones), ...

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

Add Yahoo as a preferred source to see more of our stories on Google. Primates have larger brains than most other mammals of their size. This gives them advanced learning and problem-solving abilities ...