
The hardest working muscle in your body is your heart: It pumps more than 7570 liters of blood a day and beats more than 2.5 billion times in a 70-year life span.
Although no longer connected to the beer company, Guinness World Records was founded by the managing director of Guinness Brewery in the 1950s.

Sea otters have the densest coats in the animal kingdom. Their thick fur provides their primary insulation against the cold.

You could ice skate on one of Jupiter’s moons, Europa, which is covered in ice. An Axel jump would take you 6.7m in the air.

The al-Qarawiyyin Library in Fez, Morocco is the oldest working library in the world.
Play-Doh started out as a wallpaper cleaner before the head of the struggling company realized the non-toxic material made a good modeling clay for children and rebranded it.
There are more female than male millionaires in the United States.

Hippos produce their own sunscreen. They secrete a sticky, reddish sweat that scatters light.
It has the only wild monkey population in the whole of Europe.

Lettuce is a member of the sunflower family.

Jellyfish are considered biologically immortal. They don’t age and will never die unless they are killed.
Volvo gave away the 1962 patent for their revolutionary three-point seat belt for free, in order to save lives.