Pumice is the only rock that floats on water.
14
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Scientists aren't sure what color dinosaurs were.
312
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
One ragweed plant can release as many as one billion grains of pollen!
51
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21