Add Yahoo as a preferred source to see more of our stories on Google. Seven month-old Punch, a macaque monkey who was abandoned by his mother shortly after birth, sits with a stuffed orangutan toy at ...

On their Indonesian island, crested black macaques are hunted for meat, kept as pets, and threatened by a shrinking habitat.

The intrinsic information-seeking impulse we call curiosity is independent of extrinsic rewards, such as food or mating opportunities. Curiosity is purely the pursuit of understanding the unknown, ...