- Dolphin's can detect underwater sounds from 24 km (15 miles) away.
- The symbols used for addition (+) and subtraction (-) have been around for thousands of years but it wasn't until the 16th century that most mathematical symbols were invented. Before this time math equations were written in words, making it very time consuming.
- The meaning of 'Blue Chip' comes from blue casino chips which have a high value.
- Women make up 49% of the worlds population.
- The algae found in the world's oceans produces nearly 50% of the world's oxygen.
- Despite its hump, a camel has a straight spine.
- Ostriches have a powerful immune system.
- Ketchup was once sold as a medicine.
- The movie 'Wayne's World' was filmed in two weeks.
- The moon orbits the Earth every 27.32 days.
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