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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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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Disney's first choice to play Jack Sparrow was Jim Carrey.
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Shirley Henderson, the girl who played Moaning Myrtle (the ghost in the bathroom) was actually 37 years old when she played the character in the Harry Potter series.
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