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
Babies crawl an average of 200m a day.
212
The Japanese, on average, are the shortest people.
320
There are more than 150 million sheep in Australia, and only some 20 million people.
247
If you're one in a million, there are about 7,234 people just like you.
31
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155