People are still asking questions:

“Sex represents the most important challenge to the modern theory
of evolution... the queen of problems... the main question is —why sex?”
                                                                                              Bell (1982)

“The “reversed” sexual size dimorphism of predatory birds, with females in
some cases almost twice as large as males, has long puzzled ecologists. ...
A review by Mueller and Meyer (1985) listed twenty hypotheses!”

Are Men Smarter Than Women?                    Are Men Necessary?
 Parade Magazine (2005)                             M . Dowd (2005)

“For evolutionary biologists, the existence of males and females is in many ways paradoxical. …
The question of differentiation at the individual level still remains
. Why do most animals have
individuals that are either male or female instead of both?”
                                                D. Saraga (Reflex Magazine, 2011)

The answer was found 40 years ago …    

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an idea in your head,
– you will not see the facts”
I.P. Pavlov






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The Evolutionary Theory of Sex by V. Geodakian


Sex Chromosomes Theory              Summary

Theories of Asymmetrization of Organisms, Brain and Body     Summary

These theories are based on the Asynchronous Evolution Principle:     Summary

Supplementing Each Other  (theory’s commentary on gender differences)

Recent news, discussions












Copyright 2005-2012 S. Geodakyan. All rights reserved.


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For teachers

Is presented material a “pure speculation”?

Coming soon:

The Evolutionary Theory of Sex comments on the debate "The Science of Gender and Science" Pinker vs. Spelke