Priceless & Hilarious Notes Dads Have Left for Their Children

The More You Know

• The oceans contain 200,000 different kinds of viruses.
• Humans are the only animals with chins.
• There's a Russian village where every resident is a tightrope walker.
• In 1966 and 1967, soldiers testing Agent Orange in Canada were told the chemical was completely safe and sprayed it on each other to cool off.