Testable predictions about dancing

There will be no society anywhere on Earth where all dancing is done
in secret. Dancing will be a public phenomenon everywhere. Whereas a
man or woman might practice alone, the end product will always involve
witnesses.

There will be no society on Earth where all the dancing done by men is away from the eyes of women.

Women, far more than men, will find the skill with which a potential
mate can dance far more of a factor which influences their choices of
mate. This will be true of all societies.

Women will get the most pleasure from dancing (except perhaps when
taking the contraceptive pill) when they are at the fertile peak of
their menstrual cycle.

There is much more, and thanks to Newmark’s Door for the pointer.

Addendum: Here is a working link.