I'm continually receiving messages about the fascinating worlds of other animals. Two new reports, one from observations of a chimpanzee and an orangutan swimming and the chimpanzee diving for food ...

BALIKPAPAN, Indonesia — As the small red car came to a halt, the window slid down and a hand emerged, tossing some yellow crackers on the ground. Seconds later, a group of southern pig-tailed macaques ...