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
Jellyfish as a species are actually older than dinosaurs and sharks.
383
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22