Paedomorphosis and neoteny in the pygmy chimpanzee

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Science  04 Nov 1983:
Vol. 222, Issue 4623, pp. 521-522
DOI: 10.1126/science.6623093


The strongly paedomorphic skull form in the pygmy chimpanzee results from the heterochronic process of neoteny. This cranial paedomorphosis and neoteny in Pan paniscus may be related to reduced sexual dimorphism in morphology and behavior. The interspecific differences in form result from shifts in the rate and timing of similar patterns of development.