Despite making up only around 2% of the body’s weight, the brain uses a lot of energy. The brain uses about 20% of the body’s total oxygen and glucose consumption to fuel its operations.

Honey doesn’t go bad. Ancient Egyptian tombs have contained containers of honey that are more than 3,000 years old and yet inedible, according to archaeologists.

The Rafflesia arnoldii, the largest flower in the world, may reach a diameter of three feet and a weight of 15 pounds. It has a potent smell that many people associate with rotting flesh.

In their lifetime, the typical person will walk the equivalent of three times around the globe.

About 10 million different colors may be distinguished by the human eye.

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