Hippopotamus milk is pink.
35 million people in China still live in caves.
At $150 billion, the International Space Station is the most expensive object ever built.
Whales drown if they remain underwater for more than 30 minutes.
Dynamite is made with peanuts.
Mike Tyson caught Brad Pitt with his wife in the 1980s.
Isaac Newton died a virgin.
Cats sleep for 70% of their lives.