Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Two dogs were among the Titanic survivors.
262
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Water is actually naturally blue.
48
Sharks, like other fish, have their reproductive organs in their chests.
248
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
It's impossible to sink in the Dead Sea without equipment!
72