Some monkeys in Gombe National Park don't seem to mind if the monkey they're mating with is not their own species. Instead, "promiscuous" red-tailed and blue monkeys are coming together and making ...

An evolutionary biologist at The University of Texas at Arlington is studying seasonal weight gain in male squirrel monkeys to determine its relationship to the species’ potential to sire offspring.

Researchers have found evidence of the origin behind the large, prominent nose of the proboscis monkey. Scientists looked into the size of the proboscis monkey's nose, along with other factors, to ...