Oxytocin is believed to have a more significant impact on women than on men, which may be why women associate sexual attraction or sexual activity with romance and love more than men do.

Ashton Kutcher is the co-founder of Thorn, an international anti-human trafficking organization that works to address the sexual exploitation of children using software technology.

Only 20% of the Kama Sutra is about sexual positions. Most is about the philosophy and theory of love, what triggers desire, what sustains it, and how and when it’s good or bad.

The mane of the male lion is a distinctive characteristic of lions as no other big cats have them. It makes male lions appear larger, thus allowing them to be more intimidating. It also signals sexual maturity and health status; lionesses tend to favour denser and darker manes.