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American Water Shrew Research Paper

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The american water shrew also known as the Sorex palustris is the “world’s smallest warm-blooded diving species.” The american water shrew is rather large. It has a slender body covered with brownish-black fur. It has a long tail and a long pointy moveable snout. The total length of this critter can range from 130mm to 170mm, and the weight can be from 8 grams all the way to 18 grams. Both the female and male critters seem to have the same appearance but the male water shrew tends to be longer and heavier then female water shrews. The color of the critter can vary, it is generally a brownish-black color or a grayish-black or the dorsal side. On the ventral side it tends to be a silvery-grey. The color of their fur seems to change with season.

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