- There are over 100,000 different species of butterflies.
- Octopuses think with their tentacles.
- Sir Isaac Newton was 23 when he discovered the law of gravity.
- The Hindu-Arabic numeral system began developing as early as the 1st century with a full system being established around the 9th century, forming the basis of the numerical digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 that we use today.
- Jellyfish don't have a brain.
- Elephants are afraid of bees.
- Banana trees are actually herbs.
- The side of a hammer is called a cheek.
- The average person has 10,000 taste buds.
- The most common mental illnesses are anxiety and depression.
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