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 not yet been determined, it is likely threatened by poaching, deforestation, and increased human development of its habitat, much like the other primates which inhabit the area. The white-cheeked macaque was discovered and described in 2015, making it one of the most recently discovered mammals and one of the most recently discovered primates. While specimens of the creature had been observed and known for many years prior, they were believed to be members of the species "Macaca assamensis", the Assam macaque. After footage captured on a series camera traps in Tibet revealed numerous physical differences between the Assam macaque and