1. Australia is wider than the moon.
The moon sits at 3,400 kilometers (2,113 miles) in diameter, while Australia’s diameter from east to west is almost 4,000 km (2,485 miles).
2. Headphones can increase the bacteria in your ears.
Wearing headphones for just an hour could increase the bacteria in your ears by 700 times. (Ew!)
3. Scotland chose the unicorn as its national animal.
In Celtic mythology, the fictional creature is connected with both chivalry and dominance as well as purity and innocence.
4. Avocados are not vegetables.
Avocados are fruits because they are single-seeded berries.
5. The Eiffel Tower gets taller in the summer.
When the iron heats up, the tower can be up to 15 centimeters (6 inches) taller due to thermal expansion.
6. Human teeth are the only part of the body that can’t heal themselves.
Teeth are not made of live tissue and are coated in enamel, which can’t spontaneously regenerate.
7. Switzerland prohibits the ownership of just one guinea pig.
Since guinea pigs are such social creatures, one guinea pig would get lonely so having just one is considered animal abuse in Switzerland.
8. Tigers have striped skin.
It’s not just striped fur!
9. A shrimp’s heart is in its head.
If that wasn’t interesting enough, due to the nature of their open circulatory system, shrimp have no arteries so their organs just float around in blood!
10. An 11-year-old accidentally invented ice pops.
In 1905, young Frank Epperson left water and soda powder outside overnight with a wooden stirrer in the cup. When he discovered the mixture had frozen, the “Epsicle” was born.
