Love makes us feel warm and mushy, but the sweet sting of Cupid's arrow makes a compelling chemistry lesson, too. Research into animal mating and human courtship provides clues to an eternal mystery: what's the purpose of love?

Learn lessons from the family values of field mice, and affectionate same-sex penguin pairs. Plus: Darwin's take on speed dating, and the science of smooching.

Guests

Descripción en español

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