There is a family with a genetic condition that makes their skin blue, who have been isolated in rural Kentucky for generations.
34
You can't tickle yourself.
29
It would take more than 150 years to drive a car to the sun.
569
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Chainsaws were derived from a tool originally intended to help deliver babies
45