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10 animals with the longest life spans

Jan. 19, 2010, 1:31 p.m.
tortoise

Photo: limowreck666/Flickr

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Older than your grandma

There are tortoises alive today that were 25 to 50 years old when Charles Darwin was born. There are whales swimming the oceans with 200-year-old ivory spear points embedded in their flesh. There are cold-water sponges that were filter-feeding during the days of the Roman Empire. In fact, there are a number of creatures with life spans that make the oldest living human seem like a spring chicken in comparison. Here's our list of the 10 animals with the longest life spans — and there's even an immortal animal. (Text: Bryan Nelson)