Condoms were originally made of animal intestines or linen.
347
Sharks, like other fish, have their reproductive organs in their chests.
248
Sheep, goats, octopuses, and toads have rectangular pupils.
7
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2