Why are sperm made below body temperature?

Why can eggs be made at body temperature, but sperm need to be made at cooler temperatures?
14 December 2020
Presented by Eva Higginbotham
Production by Eva Higginbotham.

SPERM-EGG

A sperm and egg meeting

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Jordan got in touch to ask ""Why do females produce eggs inside the body, at body temperature, but males have to produce sperm outside the body, at a lower temperature?" Eva Higginbotham put the question to reproduction expert William Colledge at the University of Cambridge...

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