This might explain the way Olympic level
male gymnasts have relatively short legs compared to the rest of their bodies.
I dunno. Could it be some sort of 'self' selection? You'll rarely see ... um ... very buxom female runners. The 'foundation garment' industry hasn't gotten to the point where they can make a sports bra that allows the abundanatly endowed female to run without becoming quite uncomfortable.
Perhaps long legged men tend to go for the running sports and basketball, while shorter llegged men go for the sports where height isn't that important, and for that matter, shortness of stature might be a plus?
The Idol of American Youth
Always drink upstream
from the herd.