By weight, Bone is five times stronger than steel.
417
In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
82
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
There are about 255 babies born worldwide every minute.
46
Babies crawl an average of 200m a day.
212
Nearly half of the entire world's adult population has never drunk alcohol.
12
Two in five people in the world marry their first love.
270
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
57