Rattlesnake mating sessions have been known to last more than 22 hours.
232
Whales and dolphins can't taste anything other than salt.
11
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
Denmark has twice as many pigs as there are people.
66