Scientists in Germany have developed a candy that doesn't cause cavities.
11
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.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The bark of an older redwood tree is fireproof.
65
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The average temperature at 40,000 feet above sea level is -60 F.
56