- Roosters can't crow if they can't fully extend their necks.
- Lion's can't roar until the age of 2.
- A human brain weighs around 3 pounds.
- Blonde beards grow faster than darker beards.
- Scissors were most likely invented ancient Egypt.
- A male baboon can kill a leopard.
- Cows give more milk when they listen to music.
- Blue whale tongues can weigh 8,000 pounds, or as much as an elephant, and their hearts weigh close to a ton.
- In the 1800s, Cadbury created the first heart-shaped chocolate box.
- It was once illegal to slam your car door in Switzerland.
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