One in 500 humans has one blue eye and one brown eye.
145
A chance of a woman having twins is increased after the age of 35. About 1 in 27 women will give birth to twins after this age. After 50 the chances of having twins is 1 in 9.
51
The first man to swim the length of Great Britain grew a beard to stop jellyfish stinging his face.
16
Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
58
The Japanese, on average, are the shortest people.
320
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Boys who have unusual first names are more likely to have mental problems than boys with conventional names. Girls don't seem to have this problem.
131