Conservation authority the IUCN has upheld the endangered status of the long-tailed macaque after rejecting the U.S. biomedical lobby’s challenge to downgrade it. Demand from research labs has fueled ...

Long-tailed marques are the most heavily traded for use in primate experimentation and most of these monkeys are imported to Canada from Cambodia. This year alone, Canada has received 2,500 monkeys.

Descendants of theme-park escapees, a population of rhesus macaques in a Florida state park may soon double in size—a recipe ...