| Most mammals except humans, have a bone in their penis which helps them to keep it erect. |
| Bees beat their wings extremely fast, which creates the buzzing we hear. The average honeybee beats its wings about 200 times per second. |
| Lions sometimes mate over 50 times in a single day. |
| A mating session between snakes typically lasts between 6 to 12 hours. |
| The bonobo monkey (closest relative to humans) is naturally bisexual. |
| The Argentine Lake Duck is known to lasso its mates with its penis and trap them. |
| Bonobos use sex for almost everything. They use it as a form of greeting, a celebration of a good hunt for food, a method of solving disputes, in exchange for food -- basically anything you can think of. They also perform other sex acts that many animals do not, such as tongue kissing, oral sex, face-to-face sex and homosexual encounters. |
| Flatworms are hermaphrodites, meaning they have both male and female genitals. This can make mating a little tricky when trying to figure out who gets to be the male and who gets to be the female. Most flatworms are inclined to play the male role, and they settle things with a good old fashioned sword fight - with their penises. Scientists actually call this duel "penis fencing." The loser ends up getting stabbed with the winner's penis and absorbs its sperm, becoming pregnant. |
| As a kind of foreplay before mating, female giraffes will urinate in the male's mouth. |
| Male octopi die after ejaculating, while female octopi die after giving birth. |