Condoms were originally made of animal intestines or linen.
347
The largest earthworm on record was found in South Africa and measured 22 feet.
151
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9