Nearly 3% of the ice in Antarctic glaciers is penguin urine.
The average person walks the equivalent of five times around the world in their lifetime.
Ants leave maps for other ants when they walk.
Ketchup was a medicine in the early 1800s.
Grapes are fatally toxic to cats and dogs – even in small amounts.
Before 1913, you could legally mail a baby.
The first death in the American Civil War was a horse.
In the 18th Century, Napoleon and Benjamin Franklin were both defeated at chess by a machine.
Russia was founded by a group of Viking traders called the Rus.
In 1912, a French orphanage held a raffle, with babies as the prize.
If you fell into a volcano, you’d float on the lava instead of melting.
Research shows that everyone has up to 6 doppelgängers.