Nest-building in primates Nest-building in primates Nest-building in primates refers to the behaviour of building nests by extant strepsirrhines (lemurs and lorisoids) and hominid apes (gorillas, chimpanzees, orangutans, and humans). Strepsirrhines build nests for both sleeping and also for raising families. Hominid apes build nests for sleeping at night, and in some species, for sleeping during the day. Nest-building by hominid apes is learned by infants watching the mother and others in the group, and is considered tool use rather than animal architecture. Old World monkeys and New World monkeys do not nest. It has been speculated that a major evolutionary advance in
World Animal Protection World Animal Protection World Animal Protection (formerly The World Society for the Protection of Animals) is an international non-profit animal welfare organization that has been in operation for over 30 years. The charity describes its vision as: A world where animal welfare matters and animal cruelty has ended. The charity has regional hubs in: Africa, Asia, Europe, Latin America and North America, and offices in 14 countries. The international office is in London. The organization was previously known as the World Society for the Protection of Animals (WSPA). This resulted from the merger of two animal welfare organizations in 1981,