Gorillas can catch human colds and other illnesses.
205
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Mosquitoes don't just bite you, they also pee on you.
11
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268