This animal is found in northern coniferous and deciduous forests of North America. It is believed to be the second-smallest mammal in the world, but has an extremely large appetite for its size. Due to its fast metabolism, it needs to eat constantly. It digs through moist soils and decaying leaf litter for food.
^Baird, Spencer F. (1857). "Mammals". Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean. Vol. 8. Washington: Beverly Tucker. pp. 32–33.
^Saunders, D. A. (1988). "Pygmy Shrew". Adirondack Mammals. New York: State University of New York, College of Environmental Science and Forestry. Archived from the original on 2024-07-20. Retrieved 2024-07-30.