5184 x 3456 px | 43,9 x 29,3 cm | 17,3 x 11,5 inches | 300dpi
Date de la prise de vue:
8 février 2012
Informations supplémentaires:
The Rhesus macaque (Macaca mulatta), also called the Rhesus monkey, is one of the best-known species of Old World monkeys. They are regular swimmers. Babies as young as a few days old can swim, and adults are known to swim over a half mile between islands, but are often found drowned in small groups where their drinking waters lie. Rhesus macaques are noted for their tendency to move from rural to urban areas, coming to rely on handouts or refuse from humans.In psychological research, Rhesus macaques have demonstrated a variety of complex cognitive abilities, including the ability to make same-different judgments, understand simple rules, and monitor their own mental states. They have even been shown to demonstrate self-agency, an important type of behaviour. In the group, macaques position themselves based on rank. The Central Male Sub-group contains the 2-3 oldest and most dominant males who are co-dominant, along with females, their infants and juveniles.Rhesus macaques interact using a variety of facial expressive, vocalizations and body postures, and gestures. Perhaps the most common facial expression the macaque makes is the "silent bared teeth" face. This is made between individuals of different social rank with the lower rank one giving the expression to its superior. A less dominant individual will also make a "fear grimace" accompanied by a scream to appease or redirect aggression. Another submissive behavior is the "present rump" where an individual raises its tail and exposes its genitals to the dominant one. A dominant individual will threaten another individual standing quadrupedally making a silent "open mouth stare" accompanied by the tail sticking straight.During movements, macaques will make "coos" and "grunts". These are also made during affiliative interactions and approaches before grooming. When they find rare food of high-quality, macaque will emit "Warbles, " "harmonic arches, " or "chirps."
