There are about 7,000,000,000,000,000,000,000,000,000 atoms in a human body.
Humans can’t breath and swallow at the same time
A narwhal’s tusk is filled with nerves
Humans can distinguish between at least a trillion smells
There’s a planet that rains glass sideways
The world’s oceans contain 20 million tons of gold
There’s a species of Jellyfish that are essentially immortal