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
