The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Early American humans hunted car-size armadillos and used their shells for houses.
12
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
In one day, adult lungs move about 10,000 litres of air.
11
Human hair and fingernails continue to grow after death.
7
The average sperm cell swims at 8 inches per hour.
4
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
On average a woman has 4 sexual partners in her lifetime.
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