The Titanic is about as long as the Empire State building is tall.
174
There was once an undersea post office in the Bahamas.
241
The Caspian Sea is also classed as the world's largest lake.
52
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Sharks, like other fish, have their reproductive organs in their chests.
248
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
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707