Parents receive 1 out of every 5 Valentines.
20
When you shave a guinea pig it looks like a little hippo.
19
During the Black Plague, it was thought that bad smells were the cause of the plague. "Plague Doctors" therefore wore masks with long beak-like noses stuffed with flowers or smoke to hide the smells.
19
Condoms were originally made of animal intestines or linen.
347
The Danish word for condom is 'svangerskabsforebyggendemiddel'.
89
A dairy cow can produce more milk when listening to music.
446