The male testes, unlike the woman's ovaries, do not lose the ability to make hormones.

I'd understood women all had two ovaries, in analogue to male testes.

The relative sizes of male testes often reflect mating systems.

Bachelor's buttons, a term that denotes a plant with spherical-shaped flowers, was created as a metaphor of the male testes.

The process of giving birth excites cells in the birth canal, and more male testes form.

One researcher on the case also found one female carp with bits of male testes growing inside.

After this period, the male testes decrease in size and the female refuses any copulation.