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
Sharks, like other fish, have their reproductive organs in their chests.
248
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Two dogs were among the Titanic survivors.
262
Water is actually naturally blue.
48
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17