Early American humans hunted car-size armadillos and used their shells for houses.
12
Gorillas can catch human colds and other illnesses.
205
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Your heart will pump about 212 million liters in its lifetime.
26
There are about 255 babies born worldwide every minute.
46