Long-tailed macaques given short videos were glued to scenes of fighting—especially when the combatants were monkeys they knew—mirroring the human draw to drama and familiar faces. Low-ranking ...

Punch, a monkey that went viral after he was abandoned by his mother in a Japanese zoo, is reminiscent of a foundational attachment theory experiment ...

If you matched a Swiss singer against a monkey vocalist in a yodeling contest, the non-human primate would win handily, according to a study published in the journal Philosophical Transactions of the ...

Psychologists have spent decades demonstrating the amazing abilities of animals. We now know, from lab experiments, that chimps can use blue triangles to represent red apples, and that dolphins can ...