Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
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
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
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 largest breed of rabbit is the Flemish Giant.
65
Your thumb is about the same size as your nose.
124
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82