Howler monkeys have beards and long, thick hair which may be black, brown, or red. The red howler species is the most common, but it is often targeted by hunters eager for bushmeat. Other species ...

Of two hunky monkeys, which would you say has the most ... The goal: to learn how face color—which varies from pale pink to deep red in the species—affects reproductive success.

For years, researchers speculated about an undiscovered species due to the DNA in wild monkey droppings. A team of primatologists combined data from field surveys, DNA samples from similar species ...