Math

Cicadas use prime numbers as an evolutionary strategy.

The number 4 is considered unlucky in much of Asia.

7 also shows up a lot in human culture.

The most popular favorite number is 7.

We tend to think of odd numbers as male and even numbers as female.

10! seconds is exactly 6 weeks.

If you write out pi to two decimal places, backwards it spells "pie".

There are approximately 153,237 convenience stores in the United States. How convenient!

The best pro baseball pitchers throw at around 100 miles per hour.

A cheetah can run up to 76 miles per hour, and can go from 0 to 68 miles per hour in less than three seconds.

Usain Bolt, one of the fastest runners alive, can sprint around 28 miles per hour.

Squirrels can run at about 20 miles per hour.