If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
Sharks, like other fish, have their reproductive organs in their chests.
248
The Titanic is about as long as the Empire State building is tall.
174
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
The Caspian Sea is also classed as the world's largest lake.
52
Water is actually naturally blue.
48
