The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Each day, up to 150 species of life become extinct.
-23
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7