Barren ground shrew
Sorex ugyunak R. M. Anderson & Rand, 1945
The barren ground shrew (Sorex ugyunak) is a species in the family Soricidae, order Eulipotyphla. Recorded adults weigh 3.6 g to 5.1 g and live up to 1.63 years. Its IUCN Red List status is Least Concern.
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Quick facts about the barren ground shrew
- Weight
- 3.6 g – 5.1 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 1.63 yearssrc for Lifespan
- Diet
- Invertivoresrc for Diet
- Longest recorded lifespan
- 2.5 years
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 18.1 dayssrc for Gestation
- Young per litter or clutch
- 6.5src for Young per litter or clutch
- Age at maturity
- 7.96 months – 12 monthssrc for Age at maturity
- Litters or clutches a year
- 1.9src for Litters or clutches a year
- Active
- Day and night (cathemeral)src for Active
- Lifestyle
- Terrestrialsrc for Lifestyle
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the barren ground shrew live?
Not recorded
What is the barren ground shrew?
The barren ground shrew (Sorex ugyunak) is a small shrew found in northern Canada west of Hudson Bay and in Alaska. At one time, this species was considered to be a subspecies of the similar cinereus shrew (S. cinereus). It is similar in appearance and thought to be closely related to the Saint Lawrence Island shrew (S. jacksoni) and Pribilof Island shrew (S. pribilofensis).
It is dark brown on its back with grey-brown sides and underparts; the tail is pale brown on top and light below with a light brown tip. Its body is about 8 cm (3.1 in) in length including a 3 cm (1.2 in) long tail. It weighs about 4 g (0.14 oz). This animal is found north of the tree line, in wet meadows or thickets in the tundra. It eats insects, small invertebrates and seeds.
The epithet name ugyunak is the Inuit word for "shrew".
From the Wikipedia article “Barren ground shrew” (en.wikipedia.org/w/index.php?title=Barren_ground_shrew&oldid=1313998571), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the barren ground shrew endangered?
The barren ground shrew is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species. What the categories mean.
How is the barren ground shrew classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderEulipotyphla
- familySoricidae
- genusSorex
- SpeciesSorex ugyunak R. M. Anderson & Rand, 1945
Synonyms Sorex cinereus ugyunak
Other names and names in other languages (7)
- rejsek barentskýCzech
- Musaraña de Tierra SecaSpanish
- inuittipäästäinenFinnish
- musaraigne de BeaufortFrench
- musaraigne de BéringieFrench
- ヤセチトガリネズミJapanese
- ryjówka inuickaPolish
Relatives of the barren ground shrew
Other species in the same genus Sorex.

Eurasian pygmy shrew
Sorex minutus

Common shrew
Sorex araneus

Laxmann's shrew
Sorex caecutiens

Eurasian least shrew
Sorex minutissimus

Alpine shrew
Sorex alpinus

Taiga shrew
Sorex isodon
CompareBarren ground shrew vs Eurasian pygmy shrewBarren ground shrew vs Common shrewBarren ground shrew vs Laxmann's shrewBarren ground shrew vs Eurasian least shrew
Common questions
Answered only where our data holds the answer.
How big is the barren ground shrew?
An adult barren ground shrew weighs 3.6 g – 5.1 g, according to values recorded on Wikidata.
Is the barren ground shrew endangered?
The barren ground shrew is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
How long does the barren ground shrew live?
The barren ground shrew has a recorded lifespan of 1.63 years.
How long is the barren ground shrew pregnant?
The recorded gestation period is 18.1 days.
What kind of animal is the barren ground shrew?
The barren ground shrew (Sorex ugyunak) belongs to the family Soricidae in the order Eulipotyphla.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Barren ground shrew (Sorex ugyunak). Retrieved from https://creaturedata.com/animals/barren-ground-shrew
“Barren ground shrew (Sorex ugyunak).” CreatureData, 2026, https://creaturedata.com/animals/barren-ground-shrew.
@misc{barren_ground_shrew_2026,
title = {Barren ground shrew (Sorex ugyunak)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/barren-ground-shrew},
note = {Data as of 2026-11-11}
}