The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Chocolate is associated with the release of serotonin, the hormone that makes you feel relaxed, calm, and happy.
183
If Earth's history was condensed into twenty-four hours, life would've appeared at around 4am, land plants at 10:24pm, dinosaur extinction at 11:41pm, and human history would’ve began at 11:58:43pm.
21
You forget 90% of your dreams.
256
30 years ago, you could buy a lifetime, unlimited first-class travel pass with American Airlines for $250,000.
14
Just before the US started bombing Baghdad, nearly $1 billion dollars was stolen from the Central Bank of Iraq and is now the largest bank robbery in history.
158
By weight, Bone is five times stronger than steel.
417