Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Eulipotyphla
- Family
- Soricidae
- Genus
- Sorex
Habitat
Arctic shrews primarily inhabit boreal forests, tundra, and wetland areas in northern North America, including Alaska, Canada, and parts of the northern United States. They prefer moist environments such as stream banks, marshes, and dense vegetation for cover and food availability. These habitats provide the cool, damp conditions they need to thrive.
Diet
Arctic shrews mainly consume insects like beetles and flies, earthworms, and other small invertebrates such as spiders and snails. They are voracious feeders due to their high metabolic rate, often foraging actively at night or during twilight hours. This feeding behavior helps them meet their energy demands in cold environments.
Behavior
Arctic shrews are solitary and territorial animals, marking and defending small areas from intruders. They are primarily nocturnal, spending their active time foraging for food with quick, darting movements. Despite their small size, they exhibit aggressive behavior when threatened and have a high metabolic rate that drives constant activity.
Conservation Status
The Arctic shrew is classified as Least Concern by the IUCN, with a stable population trend across its range. Major threats include habitat loss from climate change and human development, but it is not currently facing significant declines.