The pig-tailed macaque[1] (Macaca nemestrina), also called the Sundaland pig-tailed macaque and Sunda pig-tailed macaque is a medium-sized macaque native to southern Thailand, Indonesia, and Malaysia.
- It is locally known as Berok. Pig-tailed macaques have light brown hair that covers their body and a white belly.
- The hair on the crown is dark brown or black in color and grows as if it has a depression in the crown. Males have mane-like hair around their faces.
- Pig-tailed macaques also have long legs and hairless snouts.
- These macaques are born black in color and change their color during adulthood. They are sexually dimorphic, with males being larger.
- Females are about half the size of males.