Rhesus macaque baby. The baby was later found dead in a well. Though monkeys are known to attack people, enter homes or damage property, this reported behaviour was unusual. The rhesus macaque is well known to science. Due to its relatively easy upkeep in captivity, wide availability, and closeness to humans anatomically and physiologically, it has been used extensively in medical and biological research on human and animal health-related topics. It has given its name to the Rh factor, one of the elements of a person's blood group, by the discoverers of the factor, Karl Landsteiner and Alexander Wiener. The rhesus macaque
White-cheeked macaque White-cheeked macaque The white-cheeked macaque ("Macaca leucogenys") is a species of macaque found only in Mêdog County in southeastern Tibet and Arunachal Pradesh in northeastern India. The white-cheeked macaque lives in forest habitats, from tropical forests to primary and secondary evergreen broad-leaved forests and mixed broadleaf-conifer forests. The species was first described by its discoverers, Chinese primatologists Cheng Li, Chao Zhao, and Peng-Fei Fan, in the "American Journal of Primatology" in 2015. It is one of twenty-three extant species in the genus "Macaca", and the most recent to be formally described to science. While the species' exact conservation status has