- Chameleons can move both their eyes in different directions at the same time.
- The average raindrop weighs less than an eyelash.
- Oysters can change from one gender to another and back again.
- There are around 30 milligrams of caffeine in the average chocolate bar while a cup of coffee has around 100 to 150.
- Hydrogen is the most abundant element in the Universe (75%).
- The alchemy symbol for water is an inverted triangle, resembling a cup or glass.
- 12 + 3 - 4 + 5 + 67 + 8 + 9 = 100.
- 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.
- Everyone has a unique tongue print.
- There are more tigers owned by Americans than in the wild worldwide.
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