A human and a sloth are the only creatures that normally make love face to face.
In the Middle Ages, patients were tended by nuns, who in between themselves called one another sisters. That name was later used for trained nurses.
It is impossible to suck your own elbow.
The largest country in the world is Russia, it has 37.000 kilometers of coastline and it reaches three oceans: Atlantic, Arctic, and the Pacific Ocean.
Kim Peek (54), the autistic genius who inspired the creation of a film "Rain Man", knew by heart the contents of 12.000 books. That are almost all the books he had read from the age of four.
Dried bananas have four times more nutrition than fresh ones.
