A monkey's uncle may actually be its father, according to a new study showing that germ-cell chimerism is rampant in marmosets. These animals often carry another individual's sperm or egg cells ...

The common marmoset may be small enough to fit in the palm of a hand, but the diminutive stature of these monkeys belies their enormous significance in unraveling the intricate mysteries of human ...

Learn about our Editorial Policies. Agnès Lacreuse, a primatologist at the University of Massachusetts Amherst, has long been intrigued with animal behavior, particularly how nonhuman primates are ...

Whether as a sponsor or donor, a member or volunteer, or an employee or fellow, you can make a difference. The marmoset, a type of small monkey native to South America, is a research model of ...

These brain regions only reach maturity in early adulthood, allowing the animals to learn from social interactions for longer ...