Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Kissing an infection-free partner is good for your teeth!
141
Only 8% of the world’s currency is physical money. The rest exists only on computers.
20
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Water is actually naturally blue.
48