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The Etruscan shrew (Suncus etruscus), also known as the Etruscan pygmy shrew, white-toothed pygmy shrew and Savi’s pygmy shrew, is the smallest known extant mammal by mass, weighing only about 1.8 g (0.063 oz) on average.
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.
They come in a variety of body plans in contrasting shapes and sizes, and range in size from the Etruscan shrew, at 3 cm (1 in) plus a 3 cm (1 in) tail to the moonrat, at 46 cm (18 in) plus a 30 cm (12 in) tail.
They range in size from the Etruscan shrew, one of the smallest mammal species at 3 cm (1 in) plus a 2 cm (1 in) tail, [1] to the hero shrew and Thor's hero shrew, at 15 cm (6 in) plus a 10 cm (4 in) tail. Crocidurines primarily eat invertebrates, small mammals, frogs, toads, and lizards.
The "shrew-forms" are insectivorous mammals. The shrews and solenodons closely resemble mice while the moles are stout-bodied burrowers. Family: Soricidae (shrews) Subfamily: Crocidurinae. Genus: Crocidura. Sicilian shrew, Crocidura sicula LC; Genus: Suncus. Etruscan shrew, Suncus etruscus LC
There is a positive relationship between mass at birth and length of gestation in eutherian mammals. [17] Larger mammals are more likely to produce a well-developed neonate than small mammals. Large mammals develop at an absolute slower rate compared to small mammals.
This subfamily includes the largest shrew, the Asian house shrew, Suncus murinus, at about 15 cm in length, and the smallest, the Etruscan shrew, Suncus etruscus, at about 3.5 cm in length and 2 grams in weight.
The combination of Soricomorpha and Erinaceidae, referred to as order Eulipotyphla, has been shown to be monophyletic. [4] Living members of the group range in size from the Etruscan shrew, at about 3.5 cm (1.4 in) and 2 grams (0.07 oz), to the Cuban solenodon, at about 32 cm (13 in) and 1 kg (2.2 lb). Soricomorpha. Family Soricidae (shrews)