Early American humans hunted car-size armadillos and used their shells for houses.
12
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
A man's beard grows fastest when he anticipates sex.
239
It takes approximately 12 hours for food to entirely digest.
93
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
There are about 255 babies born worldwide every minute.
46
Your heart will pump about 212 million liters in its lifetime.
26