If a shark was put into a large swimming pool, it would be able to smell a single drop of blood in the water.

Every year, surgical tools are left in approximately 1,500 patients in the USA. Fatter patients are more prone to having a surgical tool left inside of them due to the additional amount of space in their bodies.

Count the number of cricket chirps in a 15-second period, add 37 to the total, and your result will be very close to the actual outdoor Fahrenheit temperature.

AMAZING FACTS