The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
It takes approximately 12 hours for food to entirely digest.
93
By weight, Bone is five times stronger than steel.
417
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Gorillas can catch human colds and other illnesses.
205
One human hair can support 3 ounces.
191
It has been scientifically proven that stroking a cat can lower one's blood pressure!
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