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Features

Why We Kiss

Researchers are revealing hidden complexities behind the simple act of kissing, which relays powerful messages to your brain, body and partner

By Chip Walter

The Sunny Side of Smut

For most people, pornography use has no negative effects—and it may even deter sexual violence

By Melinda Wenner Moyer

Bisexuality Can Benefit Animals

Homosexual behavior is surprisingly common in the animal kingdom. It may be adaptive—helping animals to get along, maintain fecundity and protect their young

By Emily V. Driscoll

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