Thin-horn
Ovis dalli Nelson, 1884
Status not recordedmammals
The thin-horn (Ovis dalli) is a species in the family Bovidae, order Artiodactyla. Recorded adults weigh 55.7 kg to 119 kg and live up to 24 years.
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Quick facts about the thin-horn
- Weight
- 55.7 kg – 119 kg
- Length
- Not recorded
- Lifespan
- 20 years – 24 years
- Diet
- Herbivore
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 175 days
- Young per litter or clutch
- 1.06
- Age at maturity
- 23 months
- Litters or clutches a year
- 1
- Active
- Day and night (cathemeral)
- Lifestyle
- Terrestrial
- Conservation status
- Not recorded
- Countries on record
- Not recorded
Where does the thin-horn live?
Not recorded
Is the thin-horn endangered?
No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.
How is the thin-horn classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderArtiodactyla
- familyBovidae
- genusOvis
- SpeciesOvis dalli Nelson, 1884
Synonyms Ovis montana dalli
Other names and names in other languages (45)
- Dall sheepEnglish
- Dall's sheepEnglish
- Dall’s sheepEnglish
- Fannin's sheepEnglish
- Stone's sheepEnglish
- Stone’s sheepEnglish
- Thinhorn sheepEnglish
- White sheepEnglish
- Dall se SkaapAfrikaans
- خروف دالArabic
- carneru de DallAsturian
- ovce aljašskáCzech
- TyndhornsfårDanish
- DallschafGerman
- Πρόβατο του ΝταλGreek
- Dall-ŝafoEsperanto
- Muflón de DallSpanish
- alaskanlammasFinnish
- mouflon de DallFrench
- כבש דאליHungarian
- Ariete di DallItalian
- ドールビッグホーン / Dōru-bigguhōnJapanese
- 돌산양Korean
- DallsauNorwegian Bokmål
- Dalls SchaapDutch
- Owca śnieżnaPolish
- carneiro de DallPortuguese
- Баран ДаллаRussian
- 白大角羊Chinese
- خروف فانينArabic
- خروف صغير القرونArabic
- AlaskaschneeschafGerman
- Dall-SchafGerman
- DünnhornschafGerman
- Borrego de DallSpanish
- OhutsarvilammasFinnish
- Bighorn biancoItalian
- ストーンシープJapanese
- ドールビッグホーンJapanese
- AlaskasauNorwegian Bokmål
- TynnhornsauNorwegian Bokmål
- DunhoornschaapDutch
- SneeuwschaapDutch
- owca jukońskaPolish
- Carneiro-de-DallPortuguese
Relatives of the thin-horn
Other species in the same genus Ovis.
Argali
Ovis ammon
Bighorn sheep
Ovis canadensis
Urial
Ovis vignei
Snow sheep
Ovis nivicola
Mouflon
Ovis gmelini
Ewe
Ovis aries
CompareThin-horn vs ArgaliThin-horn vs Bighorn sheepThin-horn vs UrialThin-horn vs Snow sheep
Common questions
Answered only where our data holds the answer.
How big is the thin-horn?
An adult thin-horn weighs 55.7 kg – 119 kg, according to values recorded on Wikidata.
How long does the thin-horn live?
The thin-horn has a recorded lifespan of 20 years – 24 years.
How long is the thin-horn pregnant?
The recorded gestation period is 175 days.
What kind of animal is the thin-horn?
The thin-horn (Ovis dalli) belongs to the family Bovidae in the order Artiodactyla.
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 - AmphiBIO, a global database for amphibian ecological traits · CC BY 4.0 · v1
Oliveira, B.F., São-Pedro, V.A., Santos-Barrera, G., Penone, C. & Costa, G.C. (2017) AmphiBIO, a global database for amphibian ecological traits. Scientific Data 4: 170123. https://doi.org/10.1038/sdata.2017.123. Data: https://doi.org/10.6084/m9.figshare.4644424.v5 - AVONET: morphological, ecological and geographical data for all birds · CC BY 4.0 · v7
Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7 - 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 - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - 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). Thin-horn (Ovis dalli). Retrieved from https://creaturedata.com/animals/thin-horn
“Thin-horn (Ovis dalli).” CreatureData, 2026, https://creaturedata.com/animals/thin-horn.
@misc{thin_horn_2026,
title = {Thin-horn (Ovis dalli)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/thin-horn},
note = {Data as of 2026-11-11}
}