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image: The Rise of Color

The Rise of Color

By | July 1, 2014

An analysis of modern birds reveals that carotenoid-based plumage coloring arose several times throughout their evolutionary history, dating as far back as 66 million years ago.

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image: Book Excerpt from <em>Nature’s Nether Regions</em>

Book Excerpt from Nature’s Nether Regions

By | July 1, 2014

In Chapter 6, “Bateman Returns,” author Menno Schilthuizen surveys the battlefield of the evolutionary arms race that has led to, among other things, such excesses as “traumatic sex.”

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image: Capsule Reviews

Capsule Reviews

By | July 1, 2014

Sex on Earth, Wild Connection, The Classification of Sex, and XL Love

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image: Carnal Knowledge

Carnal Knowledge

By | July 1, 2014

Sex is an inherently fascinating aspect of life. As researchers learn more and more about it, surprises regularly emerge.

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image: Geni-Tales

Geni-Tales

By | July 1, 2014

Penises and vaginas are not just simple sperm delivery and reception organs. They have been perfected by eons of sexual conflict.  

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image: Going Beyond the Lab

Going Beyond the Lab

By | July 1, 2014

Scientists who study the biological roots of sexual orientation should continue working with educators, policy-makers, and the public to put their data to good use.

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image: Laser-Guided Chastity

Laser-Guided Chastity

By | July 1, 2014

Scientists devise a precision-targeted system for training, tracking, and tweaking fruit fly social behavior.

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image: Let’s Talk About Sex

Let’s Talk About Sex

By | July 1, 2014

In lieu of a career in punk rock, James Pfaus opted to study the brain signals underlying sexual behavior and then see what happened when he manipulated them.

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image: Sex and Drugs

Sex and Drugs

By | July 1, 2014

Did 20th-century pharmaceutical and technological advances shape modern sexual behaviors?

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image: Size Matters

Size Matters

By | July 1, 2014

The disproportionately endowed carabid beetle reveals that the size of female—and not just male—genitalia influences insemination success.

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