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DescriptionVagrant Shrews live in moist habitats throughout their range. They are common in lakeside or streamside communities of sedges, grasses, and willows, and in coastal salt marshes. Like some other shrews, Vagrant Shrews emit high-frequency vocalizations—a kind of echolocation—that they use to orient themselves. Unlike some shrews, Vagrant Shrews do not posses toxic saliva. Vagrant Shrews have regular fluctuations in body weight, reaching a weight of about 5 - 6 g at one month of age, then dropping to 4 - 5 g until late winter, when they gain about 3 g and are ready to breed. The young are born in the spring, in round nests made of plant materials. At birth, they weigh only about half a gram.
Adaptation: The vagrant shrew belongs to a group of shrews whose teeth are pigmented, for unknown reasons. The areas of pigmentation are darkened in these images. These animals also have pincer-like incisors for handling prey.
Mammal Species of the World