Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
15
Some Chinese-made hair bands were fashioned from recycled condoms.
131
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Condoms were originally made of animal intestines or linen.
347
There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
10
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
Your thumb is about the same size as your nose.
124