| Mink's are the most highly sexed animals, intercourse lasts an average of eight hours and they ejaculate up to 260,000 sperm cells at a time. |
| A bull can inseminate 300 cows from one single ejaculation. |
| Both humans and fish share a common sexual practice - Fellatio |
| Sharks are capable of two types of reproduction? Some sharks lay eggs which are called mermaids' purses, while others give birth to live young. |
| A penguin only has sex twice a year |
| Some carnivores, rodents, bats and insectivores have a penis bone, called a baculum |
| Just two mammals possess hymens. Humans and horses |
| Snails mate only once in their lifetime, but it can take up to 12 hours |
| The female bedbug has no sexual opening. To get around this dilemma, the male uses his curved penis to drill a vagina into the female |
| Grouper (the fish) are all born female, and change sex after maturing |