By weight, Bone is five times stronger than steel.
417
There are more than 150 million sheep in Australia, and only some 20 million people.
247
Every month, about 9 out of 10 American children visit a McDonald’s restaurant.
299
Each day, there are over 120 million sexual intercourse taking place all over the world.
301
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
There are about 255 babies born worldwide every minute.
46
40% of people who are rejected in romantic love slip into clinical depression.
72
Nearly half of the entire world's adult population has never drunk alcohol.
12