What is the primary reason the testicles are located outside of the body?

Name: What is the primary reason the testicles are located outside of the body?
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Question

Quizplus · Accepted Answer

The primary reason testicles are located outside of the body is temperature regulation for the survival of sperm. Sperm production requires a cooler temperature than the rest of the body, and therefore having the testicles located outside allows for them to stay at a lower temperature than if they were inside the body.

What Is the Primary Reason the Testicles Are Located Outside