By weight, Bone is five times stronger than steel.
417
Nearly half of the entire world's adult population has never drunk alcohol.
12
The Japanese, on average, are the shortest people.
320
40% of people who are rejected in romantic love slip into clinical depression.
72
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
There are about 255 babies born worldwide every minute.
46
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
56
There are more than 150 million sheep in Australia, and only some 20 million people.
247