On the Origin of Descended Scrotal Testicles: The Activation Hypothesis
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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2009-10-01
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| Series: | Evolutionary Psychology |
| Online Access: | https://doi.org/10.1177/147470490900700402 |