A singing birthday card has more computing power than the allied forces in 1945.
30
Sound doesn't travel in space.
255
There's a rare breed of pig that looks like a sheep.
14
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Pluto is smaller than Russia.
9