Before alarm clocks were invented, there was a profession called a knocker-up, which involved going from client to client and tapping on their windows (or banging on their doors) with long sticks until they were awake. It lasted into the 1920s.
Every year 1,000 letters arrive in Jerusalem, Israel, addressed to God.
The beer was not considered an alcoholic beverage in Russia until 2013.
Your heart can keep beating even if it is separated from the body because it has its own electrical impulse.
Nazis built fake airfields to fool their enemies. The British found out and dropped fake bombs on it!
Since 1945 all British tanks have come equipped with tea making facilities.
Elephant females can have babies until they are about 50 years old.
A zebra's stripy coat disperses more than 70% of the incoming heat, preventing the animal from overheating in the African sun.
During chillier seasons, worker bees can live for nine months. But in the summer, they rarely last longer than six weeks - they literally work themselves to death!
Wolves run on their toes, which helps them to stop and turn quickly and to prevent their paw pads from wearing down.