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
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The largest breed of rabbit is the Flemish Giant.
65
A cow produces around 200,000 glasses of milk in her lifetime.
373