Table 1.
Hominid samples included in this study
| Species or subspecies | Males | Females | Source | 
|---|---|---|---|
| Pongo p. pygmaeus | 17 | 20 | NMNH | 
| Pongo p. abellii | 5 | 5 | NMNH | 
| Gorilla g. gorilla | 36 | 36 | CMNH, PCM | 
| Gorilla g. beringei | 11 | 6 | NMNH, RMCA | 
| Pan t. troglodytes | 39 | 39 | CMNH, PCM | 
| Pan t. schweinfurthii | 20 | 20 | RMCA | 
| Pan t. verus | 24 | 24 | PM | 
| Pan paniscus | 19 | 23 | RMCA | 
| Homo sapiens | 32 | 29 | CMNH | 
Abbreviations: CMNH – Cleveland Museum of Natural History; RMCA – Royal Museum for Central Africa, Tervuren, Belgium; NMNH – National Museum of Natural History, Washington, DC, USA; PCM – Powell-Cotton Museum, Birchington, UK; PM – Peabody Museum, Harvard University.