Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Eulipotyphla
- Family
- Soricidae
- Genus
- Sorex
Habitat
This species primarily inhabits moist forests, grasslands, and shrublands in North America, ranging from Alaska and Canada south to the northern United States. They prefer areas with dense vegetation, leaf litter, and proximity to water sources for cover and hunting. It avoids arid regions and is often found in cooler, temperate climates.
Diet
The American pygmy shrew feeds mainly on insects, spiders, earthworms, and other small invertebrates. Due to its high metabolic rate, it must eat frequently, often consuming more than its body weight in food daily. Feeding activity is primarily nocturnal, with the shrew actively hunting in leaf litter and undergrowth.
Behavior
American pygmy shrews are solitary and territorial, marking their areas with scent and avoiding others of their species except during mating. They are nocturnal, spending days in burrows or under logs, and exhibit high activity levels at night while hunting. Their rapid metabolism drives constant foraging, and they use high-pitched sounds for echolocation to navigate and locate prey.
Conservation Status
The IUCN classifies the American pygmy shrew as Least Concern, with a stable population trend. Major threats include habitat loss from deforestation and urbanization, though it remains widespread and abundant in suitable areas.