Condoms were originally made of animal intestines or linen.
347
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
The elephant brain weighs about 6,000g.
274
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
In Australia, there are spiders big enough to eat snakes.
20