Blind Man Sees His Family for the First Time and Says the Unthinkable

The More You Know

• The first roller coaster was invented to stop sinful behavior.
• The glass winged butterfly lacks colored scales, which makes its wings transparent and helps it avoid predators.
• A baby can cost new parents 750 hours of sleep.
• Scorpions are incredibly resilient: scientists have frozen scorpions overnight, left them in the sun the following day, and when thawed, the arthropod walked away unscathed.