- The world's smallest mammal is the bumblebee bat of Thailand.
- When you look at a bright sky and see white dots, you are looking at your blood. Those are white blood cells.
- The Olympic flag was designed in 1913.
- In the 17th century Galileo Galilei and Johannes Kepler made important discoveries relating to planetary motion and orbits.
- Rabbits like licorice.
- The number 4 is the only number that has the same number of letters in it.
- Hippopotamuses are born under water.
- A shark's teeth are literally as hard as steel.
- Archimedes of Syracuse lived around the year 250 BC and among other things, developed a method for determining the volume of objects with irregular shapes.
- Elephants are capable of swimming 20 miles a day.
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