10 Mind-Blowing Facts About Our World

1. Octopuses have three hearts. Two pump blood to the gills, while the third pumps it to the rest of the body.

2. A day on Venus is longer than a year on Venus. Venus rotates so slowly that one full rotation takes longer than its orbit around the Sun.

3. Honey never spoils. Archaeologists have found thousands-of-years-old honey in ancient Egyptian tombs that was still safe to eat.

4. There are more trees on Earth than stars in the Milky Way. Scientists estimate Earth has about three trillion trees.

5. Your body creates enough heat in 30 minutes to boil nearly half a gallon of water.

6. Sharks existed before trees. Sharks have been swimming in Earth's oceans for over 400 million years.

7. The Eiffel Tower can grow taller in summer. Heat causes the metal to expand, increasing its height by several centimetres.

8. Bananas are berries, but strawberries are not. According to botanical definitions, this surprising classification is true.

9. The shortest war in history lasted only 38 to 45 minutes. It took place in 1896 between Britain and Zanzibar.

10. There are more possible chess games than atoms in the observable universe. The number of potential game combinations is unimaginably vast.