Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Eulipotyphla
- Family
- Soricidae
- Genus
- Sorex
Habitat
Cinereous shrews primarily inhabit moist forests, grasslands, and shrublands across North America, from Alaska and Canada to the northern United States. They prefer areas with dense ground cover, such as leaf litter or under logs, and are often found near water sources like streams or wetlands.
Diet
Cinereous shrews mainly eat insects, earthworms, spiders, and other small invertebrates. They are voracious hunters, foraging actively at night using their acute sense of smell to locate prey, and they consume food equivalent to their body weight daily due to their high metabolism.
Behavior
Cinereous shrews are solitary and territorial animals, marking their home ranges with scent and aggressively defending them from intruders. They are primarily nocturnal, spending the day in underground burrows or hidden nests, and exhibit high activity levels with constant movement to find food. Their vocalizations include high-pitched squeaks used for communication.
Conservation Status
The IUCN classifies the Cinereous shrew as Least Concern, with a stable population trend across its range. Major threats include habitat loss from urbanization and agriculture, though it remains widespread and adaptable.