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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. CREDIT: limowreck666/Flickr. Geoducks. First on the list are these large saltwater clams that are native to the Puget Sound and have been known to live for at least 160 years.
Tortoises are the longest living land animal in the world, although the longest living species of tortoise is a matter of debate. Galapagos tortoises are noted to live over 150 years, but an Aldabra giant tortoise named Adwaita may having been the longest living at an estimated 255 years.