Jaymi writes: Scientists Thomas Defler, Marta Bueno and Javier García have discovered a new species of monkey in the Caquetá region of southern Colombia. Using a GPS to traverse the upper Caquetá River, García found 13 different groups of titi monkeys. The Callicebus caquetensisis is about the size of a cat with grayish-brown hair, but is missing the white bar on its forehead common to other titis. It's most distinct feature is its bushy red beard. However, the news of this discovery is tarnished by the fact that the titi faces extinction. It is estimated that less than 250 Caquetá titi monkeys exist.