Journey into Vietnam's wild interior with photographer Erez Marom as he seeks out some of Earth's most critically endangered ...

Captive Primate Safety Act aims to curb illegal pet trade in the U.S. On a recent day at the Oakland Zoo's animal hospital, across the bay from San Francisco, an endangered Mexican spider monkey leaps ...

Scientists from University of California, Los Angeles, Harvard University, and elsewhere have developed what they claim is the first comprehensive road map of how the ovarian reserve forms in primates ...