‘Old people smell’ is actually caused by a chemical, 2-nonenal, that old people secrete through their skin
8
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
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The bananas we buy in stores and supermarkets are genetically identical clones, all descended from one banana. These bananas are seedless and sterile; natural bananas are short, fat, and have huge seeds.
4
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
The human sigh acts as a physiological reset button.
23
Alligators can live up to 100 years.
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