Crab Eating Macaques, scientifically known as Macaca fascicularis, are a species of monkeys belonging to the Macaque genus and the Cercopithecidae family. They are commonly found in Southeast Asia, particularly in coastal areas such as mangroves, swamps, and riverine forests.
These primates have a robust physical build, with a body length ranging from 38 to 55 centimeters (15 to 22 inches), and a tail measuring around 20 to 57 centimeters (8 to 22 inches). Their fur coloration can vary, but they generally possess a brownish-gray to olive-green coat, with lighter underparts. One prominent characteristic of Crab Eating Macaques is their cheek pouches, which they use to store food.
As their name suggests, these primates predominantly feed on crabs, but their diet is highly versatile and includes a variety of food sources such as fruits, seeds, leaves, insects, and small vertebrates like birds and reptiles. They are excellent swimmers and have been observed diving underwater to catch their prey. Their adaptability and resourcefulness have allowed them to thrive in various environments, including urban areas, where they may scavenge for human food waste.
Crab Eating Macaques typically live in social groups, known as troops, comprised of multiple males, females, and their offspring. These troops can range in size from a few individuals to as many as 50 members, exhibiting a hierarchical social structure. Communication among Crab Eating Macaques involves a variety of vocalizations, facial expressions, and body postures to maintain social bonds and establish dominance within the group.
Despite their adaptability, Crab Eating Macaques face various threats from habitat loss, hunting for their meat or as pest control
