The Caspian Sea is also classed as the world's largest lake.
52
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Jellyfish as a species are actually older than dinosaurs and sharks.
383
The time interval from first sighting of the iceberg that sank the Titanic to impact was a little over 30 seconds.
105
The Titanic is about as long as the Empire State building is tall.
174
Two dogs were among the Titanic survivors.
262
Sharks, like other fish, have their reproductive organs in their chests.
248