Sharks, like other fish, have their reproductive organs in their chests.
248
Water is actually naturally blue.
48
There was once an undersea post office in the Bahamas.
241
The time interval from first sighting of the iceberg that sank the Titanic to impact was a little over 30 seconds.
105
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Jellyfish as a species are actually older than dinosaurs and sharks.
383