Add Yahoo as a preferred source to see more of our stories on Google. As the holiday season gets underway, many parties and gatherings might include a gift exchange. Along with Secret Santas and ...

A baby elephant at the Oregon Zoo had more tricks than treats when handlers gave it a small pumpkin to play with during the annual “Squishing of the Squash" where giant elephants smash half-ton ...

Source: Martinvl, via Wikimedia Commons. Play behavior can be a delicate balance between cooperation and competition. In apes and monkeys, a relaxed “play face” signals that one’s intentions are not ...