Bonobos have a more human-like second-to-fourth finger length ratio (2D:4D) than chimpanzees: a hypothesized indication of lower prenatal androgens

1. McIntyre, M.H.
2. Herrmann, E.
3. Wobber, V.
4. Halbwax, M.
5. Mohamba, C.
6. de Sousa, N.
7. Atencia, R.
8. Cox, D.
9. Hare, B.