- The coloured part of your eye is called the iris.
- Melissophobia is the fear of bees.
- Mathematical developments increased rapidly around the time of the Italian Renaissance in the 16th century and continued through the scientific revolution of the 17th and 18th centuries, becoming increasingly abstract in the 19th and 20th centuries..
- Elephants sleep between 4 - 5 hours in 24 period.
- Hippopotamuses have skin 3.8cm (1.5in) thick.
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