[juletide]

Natural selection is not the only force that shapes evolution.

https://en.wikipedia.org/wiki/The_Evolution_of_Beauty

...tends to imply that beauty standards can, in fact, be quite tightly bound to a culture.

[apocalypstyx]

It's speculated this is why human males lack a baculum.

https://blogs.ucl.ac.uk/researchers-in-museums/2012/11/26/ho...