It's impossible to sink in the Dead Sea without equipment!
72
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
There was once an undersea post office in the Bahamas.
241
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
The Caspian Sea is also classed as the world's largest lake.
52
Sea otters hold hands while sleeping so they don’t drift away from each other.
104