14 facts so odd you will hardly believe them

These facts are hard to believe.

1. Female kangaroos have three vaginas.

2. The oldest condoms ever found date back to the 1640s (they were found in a cesspit at Dudley Castle), and were made from animal and fish intestines.

3. Everyone has a unique tongue print, just like fingerprints.

4. It costs the US Mint almost twice as much to mint each penny and nickel as the coins are actually worth. Taxpayers lost over $100 million in 2013 just through the coins being made.

5. During World War II, the crew of the British submarine HMS Trident kept a fully grown reindeer called Pollyanna aboard their vessel for six weeks (it was a gift from the Russians).

6. The northern leopard frog swallows its prey using its eyes — it uses them to help push food down its throat by retracting them into its head.

7. Experiments show that male rhesus macaque monkeys will pay to look at pictures of female rhesus macaques’ bottoms.

8. The Dance Fever of 1518 was a month-long plague of inexplicable dancing in Strasbourg, in which hundreds of people danced for about a month for no apparent reason. Several of them danced themselves to death.

9. A family of people with blue skin lived in Kentucky for many generations. The Fulgates of Troublesome Creek are thought to have gained their blue skin through combination of inbreeding and a rare genetic condition known as methemoglobinemia.

10. There is a glacier called “Blood Falls” in Antarctica that regularly pours out red liquid, making it look like the ice is bleeding. (It’s actually oxidised salty water.)

11. Lt. Col. “Mad” Jack Churchill was only British soldier in WWII known to have killed an enemy soldier with a longbow. “Mad Jack” insisted on going into battle armed with both a medieval bow and a claymore sword.

12. The katzenklavier (“cat piano”) was a musical instrument made out of cats. Designed by 17th-century German scholar Athanasius Kircher, it consisted of a row of caged cats with different voice pitches, who could be “played” by a keyboardist driving nails into their tails.

13. The largest snowflake ever recorded reportedly measured 15 inches across.

14. In 1567, the man said to have the longest beard in the world died after he tripped over his beard running away from a fire.

Source: Buzzfeed, see 28 more weird facts on Buzzfeed