There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
German chemists made a replica of a trophy the size of one molecule.
68
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61