Early American humans hunted car-size armadillos and used their shells for houses.
12
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
The average person will go on a date at least 100 times before they finally marry.
33
Your fingernails grow faster in summer.
744
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
By weight, Bone is five times stronger than steel.
417
The human eye blinks an average of 4,200,000 times a year.
233