Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
One ragweed plant can release as many as one billion grains of pollen!
51
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
Research indicates that plants grow healthier when they are stroked.
173
The bark of an older redwood tree is fireproof.
65