"The Selfish Gene" by Prof. Richard Dawkins (1976) explains why there are two sexes, and explores other various species' sexual differences.
By Vexen Crabtree
http://www.humantruth.info/index_sexuality.html
Dawkins, Prof. Richard
The Selfish Gene (1976). 30th Anniversary 2006 edition, published by the Oxford University Press, UK.
© 2012 Vexen Crabtree. All rights reserved.
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