Here’s What “The Most Beautiful Twins in the World” Look Like Now

The More You Know

• The glass winged butterfly lacks colored scales, which makes its wings transparent and helps it avoid predators.
• In 1923, jockey Frank Hayes won a race at Belmont Park in New York despite being dead — he suffered a heart attack mid-race but his body stayed in the saddle until his horse crossed the line for a 20–1 outsider victory.
• Chihuahuas have the biggest brains in the canine world.
• The loudest animal on earth is the sperm whale.