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image: Book Excerpt from <em>Testosterone Rex</em>

Book Excerpt from Testosterone Rex

By Cordelia Fine | January 1, 2017

In Chapter 6, “The Hormonal Essence of the T-Rex?” author Cordelia Fine considers the biological dogma that testes, and the powerful hormones they exude, are the root of all sexual inequality.

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The public may still believe that male-specific traits, such as high testosterone levels, lead to many of the gender inequalities that exist in society, but science tells a different story.

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image: Female Pigs May Sense Sex of Sperm

Female Pigs May Sense Sex of Sperm

By Anna Azvolinsky | May 21, 2014

The oviducts of pigs exhibit different gene expression profiles depending on their exposure to sperm with either an X or a Y chromosome, a study shows. 

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image: Hacking the Genome

Hacking the Genome

By Karen Hopkin | June 1, 2012

In pondering genome structure and function, evolutionary geneticist Laurence Hurst has arrived at some unanticipated conclusions about how natural selection has molded our DNA.

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image: Battle of the Sexes

Battle of the Sexes

By Hannah Waters | November 17, 2011

Traits that help one sex but hurt the other are not sufficient for maintaining genetic variation.

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