- BioParque do Rio used to have quite a lot of mixed species exhibits containing primates. Some are still left, but most are either gone or are briefly under maintenance.
- A pair of golden lion tamarins were mixed with a solitary tinamou until my second-to-last visit a month ago. The tamarins were removed and are most likely in the staff-only area.
- A bare-faced curassow and a rusty-marginated guan live with two howlers (1.0 Red-handed and 1.0 Venezuelan red). In theory, they also share their exhibit with a lowland paca.
- One of the island exhibits only holds Peruvian spider monkeys. In 2021, Gray's bald-faced sakis, Uta Hick's bearded sakis and a white-lipped tamarin lived with them.
- The same tamarin lives with white-cheeked spider monkeys in the other island exhibit. Our late woolly monkey lived there as well.
- Our female Sumatran orangutans live with a troop of crab-eating macaques.
- We had tufted and yellow-breasted capuchins sharing an exhibit for a small amount of time.
- There is a pair of baboons of two different species living together in an off-show enclosure.
- Guarulhos mixes their black-tufted marmosets with black-fronted titis;
- São Paulo mixed their late female lar gibbon with two hybrid orangutans;
- Sorocaba mixes their Uta Hick's bearded saki with weeper capuchins;
- Itatiba mixes their black-fronted titis with solitary tinamous. They also mix their bald uakari with a red-backed bearded saki;
- Lisbon mixes gorillas with black-and-white colobus monkeys;
- Busch Gardens Tampa had chimps and gorillas together in the late 60s.