The chart, "African Great Apes," is a histogram displaying estimated population sizes for all 9 known subspecies of African Great Apes. All are currently listed by the International Union for Conservation of Nature and Natural Resources (IUCN)as endangered or critically endangered. The scientific and English common names and population sizes for each species or subspecies are listed below.
| Scientific Name | English name | Number |
|---|---|---|
| Pan troglodytes verus | Western Chimpanzee | 12,000 |
| P. t. troglodytes | Central Chimpanzee | 80,000 |
| P. t. schweinfurthi | Eastern Chimpanzee | 13,000 |
| P. t. vellerosus | E. Nigerian-W. Cameroon Chimpanzee | unknown |
| Pan paniscus | Bonobo | 5,000 |
| Gorilla gorilla gorilla | Western Lowland Gorilla | 100,000 |
| G. g. diehli | Cross River gorilla | 200 |
| G. beringei graueri | Eastern lowland (Grauer's) gorilla | unknown |
| G. b. beringei | Mountain gorilla | 650 |