There are more insects in one square mile of rural land than there are human beings in the world.
55
Tigers can see 6 times better at night than humans.
305
A killer whale's heart beats 30 times a minute under water, 60 times a minute on the surface.
30
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
The poison-arrow frog has enough poison to kill about 2,200 people!
55
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2