Although most living species are predominantly quadrupedal, they are all able to use their hands for gathering food or nesting materials, and, in some cases, for tool use.
With an estimated population of between 518,000 and 688,000 gorillas, chimpanzees and orangutans living in the wild, all Great Ape species are either Endangered or Critically Endangered on the IUCN Red List and CITES Appendix 1, indicating that they are at very high risk of extinction in the wild in the near future, probably within our own lifetime.
