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All shrews are tiny, most no larger than a mouse. The largest species is the Asian house shrew (Suncus murinus) of tropical Asia, which is about 15 cm (6 in) long and weighs around 100 g (3 + 1 ⁄ 2 oz) [2] The Etruscan shrew (Suncus etruscus), at about 3.5 cm (1 + 3 ⁄ 8 in) and 1.8 grams (28 grains), is the smallest known living terrestrial mammal.
It will often share its food with other shrews. It eats more than its body weight each day and is known to store food. [4] [7] The North American least shrew makes its home in burrows or shallow runways under flat stones or fallen logs. Its burrows are about 2.5 cm in diameter, from 25 cm to 1.5 m long, and seldom more than 20 cm below the ground.
It is 55 to 82 millimetres (2.2 to 3.2 in) long and weighs 5 to 12 grams (0.2 to 0.4 oz), and has velvety dark brown fur with a pale underside. It is one of the rare venomous mammals. [4] Juvenile shrews have lighter fur until their first moult. The common shrew has small eyes, a pointed, mobile snout and red-tipped teeth. It has a life span of ...
This shrew has a total length of 108 to 140 mm (4.3 to 5.5 in), of which 18 to 32 mm (0.71 to 1.26 in) is tail; and weighs 15 to 30 g (0.53 to 1.06 oz). [5] The species exhibits slight sexual dimorphism in size, with the male being slightly larger than the female.
The American water shrew is a sexually dimorphic species in which the males are generally larger and heavier than the females. The size of the shrew is 130–170 mm (5.1–6.7 in) and weight is 8–18 g (0.28–0.63 oz). Their tail length is 57–89 mm (2.2–3.5 in).
It has a long tail that is brown on top and pale underneath with a dark tip. Its body is about 9 cm (3.5 in) in length including a 4 cm (1.6 in) long tail. It weighs about 5 g (0.18 oz). It has darker colouring than other shrews. Masked shrews can live up to two years, but, on average, only survive eighteen months.
The Etruscan shrew has a slender (not truncated) body, with a length between 3 and 5.2 cm (1.2 and 2.0 in) excluding the tail, which adds another 2.4 to 3.2 cm (0.94 to 1.26 in). [8]
The tips of the incisor teeth are dark chestnut in color. The pigmentation on the tip of their teeth is caused by deposition of iron in the outer pigmented teeth. It weighs in at 0.11-0.14 ounces and has an approximate total length of 2-4 inches. Their lifespan in the wild is rarely more than a year, but they can live as long as 18 or 19 months ...