>

I've known people who started going bald at like as low as 10 and quite a few in early-mid 20s. Aweful feel bad for em!
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A trait doesn't have to be helpful for survival. It just has to not be detrimental. >

Not only that, but detrimental traits can also persist if the mutations to combat them have never appeared, or if an individual is generally able to reproduce before their appearance, or if individual genes that cause the trait are beneficial when combined differently, are present in the opposite sex, etc. There are many factors. >

exactly, a living proof is the Babirusa! >

That's the boar with the teeth that pierces their own skull, right? >

Wat >

It’s exactly as it sounds. It’s a type of South American wild boar that continuously grows a pair of tusk over its life. If it doesn’t somehow grind them down fast enough the tusks will eventually pierce it’s skull killing it. >

Damn! Also its* >

it could just be a neutral trait, thats not detrimental enough to evolve out of the population, but not exactly positive either. >

It also generally doesn’t appear until one has already procreated, thereby not being selective. >

Not true really. I’ve known several guys in my life that had male pattern baldness in their mid twenties. It’s not extremely common but yes it does happen and it has nothing to do with procreation. >

When we're young, we are strong and fast. When we get old, we slow down. So our heads go bald to be more aerodynamically efficient. >

As a cyclist… this response makes me so happy. If it ain’t Aero, I don’t want it. >

Since it's so common, apparently complete stupidity is a positive evolutionary trait. >

It technically is a positive evolutionary trait, because people who are less educated tend to have more children. >


who are less educated tend to have more children

True 30+ years ago where you can own a home with minimum wage and still go on vacations. Not so much after the millenium as everything got so expensive. >

Not necessarily positive, just not selected against. Probably because male pattern baldness shows up long after sexual maturity and therefore doesn't impact the likelihood of reproducing all that much