1. There are 62,000 miles of blood vessels in the human body – laid end to end they would circle the earth 2.5 times
2. At over 2000 kilometers long, The Great Barrier Reef is the largest living structure on Earth.
3. A typical hurricane produces the energy equivalent of 8,000 one megaton bombs.
4. Blood sucking hookworms inhabit 700 million people worldwide.
5. 65% of those with autism are left handed.
(Autism is a disorder of neural development characterized by impaired social interaction and communication, and by restricted and repetitive behavior. The diagnostic criteria require that symptoms become apparent before a child is three years old. Autism affects information processing in the brain by altering how nerve cells and their synapses connect and organize; how this occurs is not well understood.
http://en.wikipedia.org/wiki/Autism)
6. The temperature on the surface of Mercury exceeds 430 degrees C during the day, and, at night, plummets to minus 180 degrees centigrade
7. Butterflies taste with their hind feet, and their taste sensation works on touch – this allows them to determine whether a leaf is edible.
source : http://listverse.com/2007/12/19/top-20-amazing-science-facts/
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