Men who have sex twice a week are up to 45% less likely to have heart attacks than men who have sex once a month or less, according to a study published in the American Journal of Cardiology.
When a female lion is in heat, she can have sex up to 100 times per day.
Female ferrets can die if they don't have enough sex.
Pheromones have been used by scientists to leverage Bed bugs' dagger penises to encourage them to kill one another by means of “uncontrolled sex”.
Sex is banned aboard the International Space Station.
Beards are characterized by biologists as a secondary sexual characteristic as they are unique to one sex.
Four popes have reportedly died during sex.
Sex burns an average of 3.6 calories per minute.
Sex and alcohol make people happier than having kids and religion, according to researchers from the University of Canterbury.
Earthworms mate by joining their clitella (swollen area near the head of a mature worm) with another worm's clitella and exchanging sperm. Then each worm forms an egg capsule in its clitellum