If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Sharks, like other fish, have their reproductive organs in their chests.
248
Water is actually naturally blue.
48
Jellyfish as a species are actually older than dinosaurs and sharks.
383
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
It's impossible to sink in the Dead Sea without equipment!
72
Two dogs were among the Titanic survivors.
262