Lion-tailed macaques are only located in southwestern India. Here they inhabit tropical evergreen and montane forests within the Western Ghats mountain range. Lion-tailed macaques spend the majority of their lives in the treetops where they will find food and safety.

Lion-tailed macaques are omnivores. Their diet consists of fruits, nuts, seeds, leaves and insects.

Lion-tailed macaques are approximately 1.5 - 2 feet in height, and have a tail length of of 1 - 2 feet. They generally weigh between 10 - 25 pounds. The body of a lion-tailed macaque is covered in long, black hair. Around their faces grow silvery manes, and at the tips of their tails are balls of fur. These characteristics give them somewhat similar characteristics to lions, which is where their names are derived from.

Like many primates, lion-tailed macaques have a number of ways of communicating with one another. This communication may come in the form of gestures, screams, growls or other vocalizations and could be used for a variety of reasons, such as warning other macaques of danger.

The pregnancy or gestation period for female lion-tailed macaques lasts approximately 5 - 6 months. They will most often give birth to one offspring.

Lion-tailed macaques are endangered. One of the primary reasons for this, as with many forest animals, is the loss of their habitat.