Condoms were originally made of animal intestines or linen.
347
Sheep, goats, octopuses, and toads have rectangular pupils.
7
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
The head of a jellyfish is called the "Bell."
6
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
Denmark has twice as many pigs as there are people.
66
Dogs have been man's pet for over 14,000 years.
224