The southern muriqui, also known as the southern woolly spider monkey, is a primate species native to the Atlantic Forest of Brazil. It is characterized by its long limbs, prehensile tail, and a distinctive coat of fur that ranges from brown to gray. This species is known for its social behavior, often living in groups and displaying strong bonds among members. Southern muriquis primarily feed on leaves, fruits, and flowers, making them important for seed dispersal in their habitat. Unfortunately, they are classified as endangered due to habitat loss and hunting, leading to a significant decline in their population. Conservation efforts are underway to protect their remaining habitats.