The Sunda slow loris is a nocturnal loris that lives in the tropical rainforests of Southeast Asia. It has a body length of about 30 cm, weighs 600–700 g, and has almost no tail, moving slowly through the trees. It mainly eats fruit, leaves, tree sap, and bird eggs, and it possesses a tapetum allowing activity in low light. A distinctive feature is that it mixes secretions from its axillary scent gland with its saliva to produce a toxin for defense. Reproduction is not seasonal, with females coming into estrus multiple times a year. Its conservation status is Endangered (IUCN Category I B).