Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
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
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Sound at the right vibration can bore holes through a solid object.
134
A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists in Germany have developed a candy that doesn't cause cavities.
11