About Macaca cyclopis (Swinhoe, 1863)
Physical characteristics: The Formosan rock macaque, also called the rock macaque, has a body length of 50–60 cm and a body weight of 5–12 kg, with females generally smaller than males. Its moderately long tail measures 26–45 cm. This macaque’s fur is brown or gray. Like all other macaques, it has specialized pouch-like cheeks that let it temporarily hoard gathered food, which it eats later when it is in a safe location. Reproduction: Formosan rock macaques usually give birth to a single offspring per birth. During the female’s estrus, the perineum swells at the base of the tail, and additional swelling also occurs along the thighs. Their mating season runs from October to January. Gestation lasts approximately five and a half months. Females give birth between spring and summer. Females are solely responsible for nursing their young. Infant macaques are carried in their mother’s arms for 2–3 months. Young macaques are not fully independent of being carried by their parents until they reach one year old.
