Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A man called Dean Karnazes ran 350 miles in 80 hours with no sleep, ran a marathon in the South Pole in -25 °C temperatures without snowshoes, and ran 50 marathons in 50 states in 50 days.
14
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
In 2011, there were 3 known cases around the world of twins coming from different fathers.
30
Wyoming has only 2 sets of escalators in the entire state.
17