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the branch of theoretical biology that proposes that animal (including human) behavior has a biological basis controlled by the genes. adj., adj sociobiolog´ical.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
The study of the biological determinants of social behavior, based on the theory that such behavior is often genetically transmitted and subject to evolutionary processes.
so′ci·o·bi′o·log′i·cal (-bī′ə-lŏj′ĭ-kəl) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
sociobiologythe explanation of social behaviour in terms of evolutionary theory
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005