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The more likely explanation is something like, higher temperatures impair cognitive function and older men were more likely to be in the village conducting busi
by AnthonyMouse 2y ago
The more likely explanation is something like, higher temperatures impair cognitive function and older men were more likely to be in the village conducting business around the fire or in the presence of indoor heating than freezing their butts off in the wilderness as the younger men did, so they evolved to start having less insulation on their heads after they leave adolescence.
- Ekaros 2y agoOr that some random mutations do not have evolutionary consequences. Also lot of powerful people have had lot of offspring despite baldness.
- AnthonyMouse 2y ago"Nature did this for no reason" is in general not the default assumption. It's not that it can never happen, but rather that as soon as there are two phenotypes, evolution is going to start selecting for one of them over the other in any given environment unless the difference has zero effect on evolutionary fitness, which is unusual.
- thaumasiotes 2y agoMy uncle had noticeable baldness very early. When he graduated college and started working in finance, he found that the baldness was a major advantage, making him look older and therefore letting him avoid the stereotype that young people are immature / unreliable / ignorant / untrustworthy.