Description
Here are some true, yet incredibly surprising facts that sound like they might be made up:
1. **Bananas are radioactive**: Bananas contain potassium, and a small fraction of potassium is the isotope potassium-40, which is radioactive. While the radioactivity is harmless, it’s enough to give bananas a measurable radiation level!
2. **Honey never spoils**: Archaeologists have found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible. Honey’s long shelf life is due to its low moisture content and acidic nature, which prevent bacteria and microorganisms from growing.
3. **A day on Venus is longer than a year on Venus**: Venus has an extremely slow rotation, taking about 243 Earth days to complete one full rotation, while its orbit around the Sun takes only 225 Earth days. This means a single day on Venus is longer than its year!
4. **Sharks predate trees**: Sharks have been around for more than 400 million years, while trees appeared only around 350 million years ago. Sharks are older than even most plant life on Earth!
5. **Wombat poop is cube-shaped**: Wombats produce cubes of poop, which helps them mark their territory. The unique shape prevents the poop from rolling away, keeping it in place to send clear territorial signals.
6. **Octopuses have three hearts**: Two hearts pump blood to the gills, while the third pumps it to the rest of the body. When an octopus swims, the heart that delivers blood to the body stops beating, which is one reason why octopuses prefer crawling over swimming.
7. **Tomatoes were once thought to be poisonous**: In Europe, when tomatoes were first introduced, they were believed to be toxic due to their relation to the nightshade family. It took centuries for people to realize they were perfectly safe to eat.
8. **Sloths can hold their breath longer than dolphins**: Sloths can hold their breath for up to 40 minutes underwater, much longer than dolphins, who typically hold their breath for about 10 minutes.
9. **A single cloud can weigh more than a million pounds**: Clouds might seem light and fluffy, but the water droplets they contain can weigh a staggering amount. A large cumulus cloud can weigh as much as 1 million pounds or more.
10. **Cows have best friends**: Studies have shown that cows form strong social bonds and can experience stress when separated from their best friends. They have unique personalities and preferences for certain other cows.
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