If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Mushrooms are more closely related to humans than they are to plants.
47
If your DNA was stretched out it would reach to the moon 6,000 times.
256
All 13 minerals necessary for human life can be found in alcohol beverages.
282
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127