Article

On the Origin of Descended Scrotal Testicles: The Activation Hypothesis

2009-10-01

Abstract excerpt

Male gonads contained in an unprotected skin sack located outside the body cavity are a peculiar mammalian anomaly. We advance the hypothesis that descended scrotal testicles in humans and many other mammals evolved to provide a situation specific means of activating sperm. As a result of consistent temperature differences between the male and female reproductive tracts (i.e., scrotal temperatures are typically ma...

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Literature Corpus work: 1a9a26f8-b84e-5081-8a44-a20384f66ec5
DOI: 10.1177/147470490900700402

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