The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Your body is creating and killing about 2.4 million red blood cells per second.
17
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
Lurch, a Watusi bull, had the largest horns in the world.
32
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140