Arctic shrew
Animal
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The Arctic shrew, also known as the blackback shrew or saddlebacked shrew, is a medium-sized shrew found in Canada and the northern United States. Wikipedia
Gestation period: 17 days
Family: Soricidae
Scientific name: Sorex arcticus
Mass: 0.29 oz (Adult)
Trophic level: Carnivorous
Conservation status: Least Concern (Population stable)
Class: Mammalia
Source: Encyclopedia of Life