Sea otters hold hands while sleeping so they don’t drift away from each other.
104
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
Water is actually naturally blue.
48
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
It's impossible to sink in the Dead Sea without equipment!
72
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707