The lifespan of mammals is about 1 and a half billion heartbeats.
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The oldest recorded elephant lived for 82 years.
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A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
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The oldest living person smoked cigarettes from the age of 21 to 117.
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The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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According to official documents, Luo Meizhen was born in 1885, which would make her 127 years old when she died in 2013 and the oldest person ever to have lived.
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