Laughter is the biological reaction of human beings to moments of humor. Depending upon the extent and pitch, laughter can be subcategorized as giggles, chuckles,
Elephants' lungs are unusual. Instead of having a plural space between lungs and the chest case, as humans and most mammals do, elephants have dense sheets of fibre tissue, allowing their lungs to withstand pressures that would cause human lungs to collapse. The reason why birds fly in a V-shape has got two theories involved. The first and most accepted theory is that
Ancient man believed that his breath contained his spirit and that it lived in his head. Therefore, when he sneezed, he feared that he was losing his soul and leaving and empty space
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December 2012
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