Condoms were originally made of animal intestines or linen.
347
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
A lion in the wild usually makes no more than twenty kills a year.
186
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Rattlesnake mating sessions have been known to last more than 22 hours.
232
A cow produces around 200,000 glasses of milk in her lifetime.
373