There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
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Sharks, like other fish, have their reproductive organs in their chests.
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It's impossible to sink in the Dead Sea without equipment!
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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The time interval from first sighting of the iceberg that sank the Titanic to impact was a little over 30 seconds.
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If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
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The Caspian Sea is also classed as the world's largest lake.
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NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
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