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
The What in the World? Quiz time of the situation chosen. For example, if the event takes 42 seconds to complete, they have 42 seconds to answer as many questions as possible. 3) Experimental: In this round, a team of scientists from Cambridge University called "The Naked Scientists" perform a scientific experiment. The panel then draw what they think will happen during the experiment. The panel are given up to 5 points depending on how accurate their drawing is, as judged by Brigstocke. 4) Factoid Frenzy: The panel are shown a video montage which contains a range of different facts. The panel have to try and