The social structure of early primates was likely more similar to that of humans today than previously assumed, new research suggests.

A team has solved a years-long mystery mystery with the diagnosis of a rare genetic disease in a Sumatran orangutan.

New research with primates provides evidence that "evidence of reproduction is 'written in the bones' for life.'"

Variation among primate eye color may be the result of ambient light in their habitats, new research finds.

Baboons are pretty good, but not perfect, at keeping their family and romantic lives from getting too intertwined. Here's where their social filter fails.

New formulas can calculate the body size of a primate based on the root size of its teeth.

In a surprising finding, researchers have discovered that even though primates are "smarter" than mice, the rodents actually have more synapses per neuron.

New research on primate alloparenting, or infant care by non-parents, sheds light on the evolution of facial expressions.

Lemurs can sniff out fruit that's hidden in the forest more than 50 feet away. But only if the wind is blowing in the right direction.

Despite our unusual propensity for sweating, our bodies require less water than those of our fellow primates, research finds. Could our noses be why?