Two dogs were among the Titanic survivors.
262
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
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
There was once an undersea post office in the Bahamas.
241
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Water is actually naturally blue.
48
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119