The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
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The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
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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 lifespan of mammals is about 1 and a half billion heartbeats.
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The oldest creature ever found was Ming the clam at an admirable 507 years old.
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The oldest recorded elephant lived for 82 years.
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