A blind American man taught himself to navigate using echolocation. His hobbies include hiking and mountain-biking, and he has now trained over 500 students in his ‘tongue-click’ technique.
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George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
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An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
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The sun puts out more power in 1 second than mankind has ever used within human existence.
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Only about 2% of the world population has green eyes.
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