During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Bats sleep 18-20 hours per day.
5
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5