Isilevu

Isilevu okanye ummandla wokucamngca yindawo apha ebusweni ngezantsi komlebe osezantsi ikwaquka indawo eveleleyo.[1] Ithanda ukuba ncinane yaye ibe ngqukuva kubantu basetyhini, ngelixa iba nkulu de ibe buxande emadodeni. Yenziwa ziintlafuno ezingezantsi. Ebantwini kuneentlobo eziliqela zemilo zezilevu, umzekelo isilevu esinefotho. 

I-isilevu yoabantu.

In human evolution, the chin is a cladistic apomorphy, partially defining anatomically modern humans as distinct from archaic forms. Non-human anthropoid apes have a simian shelf for example. Indlovu are the only other animals considered to display such a feature,[2] although this leads to debate over the use of the term.[3]

ImithomboEdit

  1. "Full Definition of chin". Merriam-Webster Dictionary. http://www.merriam-webster.com/dictionary/chin. Retrieved 2015-09-22.
  2. Enlow, Donald H. (1982) Handbook of facial growth Philadelphia: Saunders p. 283 ISBN 0721633862 "In the human mandible, a prominent chin marks this region, a distinctive feature that characterizes the face of modern man (and also, for reasons yet to be studied, the elephant)." 
  3. Schwartz, Jeffrey H. (2000) "The human chin revisited: what is it and who has it?" Journal of Human Evolution 38 (3): 402 PMID 10683306 doi:10.1006/jhev.1999.0339 "When humans and elephants can both be described as having chins, it is probably time to reconsider the applicability of the term."