Valentine's Day
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The Evolution of the Sweet Tooth
There's a reason sweethearts don't give each other boxes of radicchio for Valentine's Day. Humans have a soft spot for things that taste sweet
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Ten Out-of-the-Ordinary Valentine’s Day Customs
From the festivals of ancient Rome to modern campaigns, the holiday hasn’t always been about roses and candy
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The Curious Do's and Don'ts of Insect Dating Behavior
Bugs tap, dance and buzz to attract their mates—and some get eaten
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A Brief History of Chocolate
Uncover the bittersweet story of this ancient treat and watch a video
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Big Love
In a mating ritual, male humpback whales leap, splash and fight. But researchers ask: just what does a female whale want?
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