Eurasian Pygmy Shrew (Sorex minutus) lives in temperate forests across Northern Eurasia. It feeds on insects and worms. Its conservation status is Least Concern.
Fascinating facts about the Eurasian Pygmy Shrew
- The Eurasian pygmy shrew is a tiny mammal measuring about 5 cm in length with a 3.5 cm tail, and it weighs only around 4 g. Its back is covered in very dense, shiny fur that is blackish with shades ranging from reddish to purplish, while the belly, throat, jaw, periocular area and lower tail are whitish. The muzzle and legs have sparse white hair and the skin is flesh-coloured. Compared with other shrews, its head is proportionally larger than the rest of the body.
- The Eurasian pygmy shrew possesses one of the highest metabolic rates known among animals, which forces it to feed constantly. It is active both day and night, roaming a few hundred square metres while establishing trackways through dense vegetation. To keep its body temperature stable it must eat at least every two hours, a habit driven by its need to maintain homeostasis. This relentless feeding pattern is essential for its survival in a wide elevation range.
- Each day a Eurasian pygmy shrew consumes more than its own body mass, up to 125 % of its weight, which is about 4 g of insects and seeds. This extraordinary intake is necessary because the shrew's metabolism is extremely rapid. The daily food amount equals a full day's worth for a creature that itself weighs only 4 g. Such a high consumption rate supports its constant activity and the need to eat every two hours.
- The Eurasian pygmy shrew's gestation period lasts just over three weeks. Because the breeding season runs from April through to August, a female can produce between two and eight young per litter and may raise up to five litters in a single year.
- The pygmy shrew takes refuge in the burrows or tunnels of other rodents, which are typically found beneath tree stumps. As a solitary animal it moves through dense vegetation, establishing narrow trackways as it roams a few hundred square metres each night and day.
Sources
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At a glance
RangeNorthern Eurasia
HabitatTemperate forests
DietInsects and worms
About the Eurasian Pygmy Shrew
In the hidden realms of the forest floor, the Eurasian Pygmy Shrew darts and weaves with frenetic energy, its tiny heart beating at a furious pace as it pursues its relentless hunt for insects and seeds. With each swift movement, its slender body seems to blur into the underbrush, only to reappear in a flash of chestnut-brown fur, its beady eyes shining with a fierce and unyielding intensity. As it navigates this miniature world, the pygmy shrew embodies a boundless vitality, its very existence a testament to the enduring power of life in even the smallest of creatures.
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