Why do humans cry? This hour, we look at the science of crying and discuss what it does for us, emotionally and culturally.

Plus: musician Dar Williams on why some songs make us cry. And: We investigate “crocodile tears” with a crocodile biologist.

GUESTS:

• Benjamin Perry: Minister at Middle Church and the author of Cry, Baby: Why Our Tears Matter
• Kent Vliet: Recently retired from his position as coordinator of laboratories at the University of Florida; he is an expert in crocodilian biology
• Dar Williams: Singer-songwriter

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Colin McEnroe, Stacey Addo, Jonathan McNicol, and Cat Pastor contributed to this show.

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