- The first hot air balloon passengers were a sheep, duck, and rooster.
- Snakes can't blink.
- You can tell what a narwhal has eaten each year based on the layers of its tusk.
- Tennis was originally played with bare hands.
- Your skin is the largest organ making up the human body.
- The equals sign (=) was invented in 1557 by a Welsh mathematician named Robert Recorde.
- The algae found in the world's oceans produces nearly 50% of the world's oxygen.
- The tiny pocket in jeans was made for pocket watches.
- Ripening bananas glow an intense blue under black light.
- A spider's silk is stronger than steel.
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