An unusual convoy is nearing Argentina’s lush border with Brazil, after snaking ...

Unlike many New World monkeys, Old World monkeys cannot use their tails for gripping. Ape species are divided into the lesser apes, or gibbons, and the great apes, which include chimpanzees, bonobos, ...

Ornithologist Bruce Beehler tracks down what he calls the “Magnificent Seven,” a charismatic group of migratory birds, in his ...