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
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
The Titanic is about as long as the Empire State building is tall.
174
Sharks, like other fish, have their reproductive organs in their chests.
248
It's impossible to sink in the Dead Sea without equipment!
72
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181