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Rhesus social behaviour has been described as despotic, in that high-ranking individuals often show little tolerance, and frequently become aggressive towards non-kin. [49] Top-ranking female rhesus monkeys are known to sexually coerce unreceptive males and also physically injure them, biting off digits and damaging their genitals. [50]
The center maintains a colony of 4,200 non-human primates (consisting of rhesus monkeys, Japanese macaques, vervets, baboons and cynomolgus macaques), [6] cared for by 12 veterinarians and 100 full-time technicians. [7] Living conditions at the facility are inspected bi-annually by the USDA in unannounced visits. Animal rights activists have ...
The Post and Courier newspaper reported in 2023 that Alpha Genesis won a federal contract to oversee a colony of 3,500 rhesus monkeys on South Carolina's Morgan Island, known as "Monkey Island."
Tetra (born October 12, 1999) is a rhesus macaque that was created through a cloning technique called "embryo splitting". She is the first "cloned" primate by artificial twinning, and was created by a team led by Professor Gerald Schatten of the Oregon National Primate Research Center .
However, a rhesus monkey was cloned in 1999 using what researchers consider a simpler cloning method. In that case, scientists split the embryos, much like what happens naturally when identical ...
The pit of despair was a name used by American comparative psychologist Harry Harlow for a device he designed, technically called a vertical chamber apparatus, that he used in experiments on rhesus macaque monkeys at the University of Wisconsin–Madison in the 1970s. [2]
Monkey clinging to the cloth mother surrogate in fear test. Harry Frederick Harlow (October 31, 1905 – December 6, 1981) was an American psychologist best known for his maternal-separation, dependency needs, and social isolation experiments on rhesus monkeys, which manifested the importance of caregiving and companionship to social and cognitive development.
Harry Harlow conducted a controversial study involving rhesus monkeys and observed that monkeys reared with a "terry cloth mother", a wire feeding apparatus wrapped in softer terry cloth which provided a level of tactile stimulation and comfort, were considerably more emotionally stable as adults than those with a mere "wire mother".