Jellyfish as a species are actually older than dinosaurs and sharks.
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In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Two dogs were among the Titanic survivors.
262
The Caspian Sea is also classed as the world's largest lake.
52
The Titanic is about as long as the Empire State building is tall.
174
There was once an undersea post office in the Bahamas.
241
Sharks, like other fish, have their reproductive organs in their chests.
248