Rhesus monkeys typically have brown fur with red faces and ears and are noted for notably expressive facial features.
October 28, 2025
high
descriptive
Physical description of the Rhesus monkey species.
The New England Primate Conservancy states that Rhesus monkeys were first imported to the United States for biomedical research laboratories in the 1970s.
January 01, 1970
high
historical
Historical importation of Rhesus monkeys into the U.S. for research purposes.