Did You Know? Woahh!
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The average person produces enough saliva over their lifetime to fill roughly two swimming pools.
An octopus has three hearts and blue, copper-based blood. Its neurons are spread across its body - about two-thirds are in its eight arms.
The Great Wall of China is not visible from space with the naked eye, despite the popular myth.
The world record for the longest continuous bout of hiccups is 68 years, held by Charles Osborne from 1922 to 1990.
No two tigers have the same stripe pattern - their markings are as unique as human fingerprints.
A group of rhinos is called a crash.