1. 1) 葉山杉夫:サルはなぜ木から落ちないのか:ヒトの声門機能の起源, 霊長類研究, 12(2), 179-206, (1996).
2. 2) Fleagle, J.: Dynamics of a brachiating siamang [Hylobates (Symphalangus) syndactylus], Nature, 248(5445), 259- 260, (1974).
3. 3) Fleagle, J. G.: Primate adaptation and evolution, Academic press. 151-168, (2013).
4. 4) Hollihn, U.: Bimanual suspensory behaviour: Morphology, selective advantages and phylogeny., In: Preuschoft, H., Chivers, D. J., Brockelman, W. Y. and Creel, N. (Eds): The lesser apes: Evolutionary and Behavioural Biology Edinburgh: Edinburgh University Press, 85-95, (1984).
5. 5) 國松豊:テナガザルの進化はどこまでわかっているか ?, 霊長類研究, 19(1), 65-85, (2003).