Condoms were originally made of animal intestines or linen.
347
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Your thumb is about the same size as your nose.
124
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
Obsessive nose picking is called Rhinotillexomania.
101
There is a family with a genetic condition that makes their skin blue, who have been isolated in rural Kentucky for generations.
34
A 4-foot walrus penis bone sold at auction in 2007 for $8,000.
202