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The simian shelf is a bony thickening on the front of the ape mandible. Its function is to reinforce the jaw, though it also has the effect of considerably reducing the movement of the tongue by restricting the area available for muscles.
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- Wright, M. (1996). "Online Anthropology Glossary". Archived from the original on 2006-08-05. Retrieved 2008-12-22.
- Howells, W. (1945). Mankind So Far. New York: Doubleday. p. 68.
- Custance, A. C. (1997). "The Implication of Convergence on Human Origins". Convergence and the Origin of Man. Retrieved 2008-12-22.
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