Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Pumice is the only rock that floats on water.
14
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
The only letter not appearing on the Periodic Table is the letter "J".
180
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
Sound travels about 4 times faster in water than in air.
408
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17