By weight, Bone is five times stronger than steel.
417
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
There's a rare breed of pig that looks like a sheep.
14
In the case of an emergency, a Crayola crayon can be used as a candle and will burn for about 15 minutes.
36
The Beatles wrote into their contracts for American concerts that they would not play in front of segregated audiences.
24