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10 animals with the longest life spans

By: Bryan Nelson on Jan. 19, 2010, 1:31 p.m.

Photo: Joe Mabel/Wiki Commons/GNU

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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. They are characterized by their long 'necks', or siphons, which can grow to over 1 meter long.