The North Atlantic gets 2.5 centimetres (1in) wider every year.
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In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
There was once an undersea post office in the Bahamas.
241
Two dogs were among the Titanic survivors.
262
Sharks, like other fish, have their reproductive organs in their chests.
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