- A group of monkeys is called a troop.
- Monkeys have tails, apes don't.
- Howler monkeys are the noisiest land animals.
- Sea monkeys are not monkeys, but shrimps.
- In captivity, a pygmy marmoset can live over 11 years.
- Mandrills can live up to 45 years in captivity.
- Albert II became the first monkey in space on June 14, 1949.