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  • What is the largest member of the weasel family (Mustelidae) by length?

    Posted on November 17th, 2010 admin No comments

    First correct answer was from @KessCat:  The giant river otter (Pteronura brasiliensis) it the largest member of the weasel family by length.

    The sea otter (Enhydra lutris) is often named among the largest mustelids.  Individuals vary greatly,  and the species overlap in size (i.e. the longest sea otter is longer than smallest giant river otter), but the giant river otter takes the record as the longest mustelid.  The longest giant river otters measure about 5.9 feet. Sea otters reach just about 5 feet.  By weight, the sea otter and giant river otter reach about the same size:  100 lb. or so at the most.

    Many people mentioned the wolverine.  The wolverine (Gulo gulo) is the largest land-dwelling mustelid, but only about 4 ft long and 55 lb. at the largest.

    More about the biggest weasels:

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