Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
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 oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
118
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Only about 2% of the world population has green eyes.
36
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
Lurch, a Watusi bull, had the largest horns in the world.
32
A cow produces around 200,000 glasses of milk in her lifetime.
373