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Science & Nature • Extinct Animals

Aurochs

The aurochs (*Bos primigenius*) was an extinct species of large wild cattle that ranged across Europe, Asia, and North Africa.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

The aurochs (Bos primigenius) was an extinct species of large wild cattle that ranged across Europe, Asia, and North Africa. It is generally regarded as the wild ancestor of modern domestic cattle. The last known individual died in Poland in 1627.

Description

The aurochs was a large, robust wild bovine with a dark coat and prominent curved horns. Bulls could reach about 1.8 m at the shoulder, while cows were smaller. Its horns were large and forward-curving, sometimes reaching about 80 cm in length. It is often described as one of the largest land herbivores of postglacial Europe.

Distribution and habitat

Aurochs occupied a broad range across Europe, North Africa, and much of Asia. Fossil and historical evidence show that different regional populations survived for different lengths of time, with the Eurasian population persisting longest.

Relationship to domestic cattle

The aurochs is widely identified as the ancestor of domestic cattle. Domestication began thousands of years ago, and selective breeding produced the many cattle breeds known today. Aurochs are relevant to Canadian readers mainly through their importance in the history of cattle domestication, which underpins modern livestock systems in Canada.

Extinction

Aurochs declined because of hunting, habitat loss, and pressure from expanding human land use. The last known aurochs died in 1627 in the Jaktorów Forest region of Poland.

Key facts

  • The aurochs was a large wild ox and one of the biggest herbivores of the Holocene.
  • Bulls could reach about 1.8 m at the shoulder, with cows smaller than bulls.
  • Its horns were large and forward-curving, and some sources describe them as reaching about 80 cm in length.
  • The last known aurochs died in Poland in 1627.
  • It is considered the wild ancestor of modern domestic cattle.
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Canadian context

Aurochs are relevant to Canadian readers mainly through their importance in the history of cattle domestication, which underpins modern livestock systems in Canada.

Frequently asked questions

What was an aurochs?
An aurochs was an extinct species of large wild cattle native to Europe, Asia, and North Africa.
Are aurochs the ancestors of cattle?
Yes. The aurochs is widely regarded as the wild ancestor of domestic cattle.
How big was an aurochs?
Bulls reached about 1.8 m at the shoulder, while cows were smaller. Some sources report horns up to about 80 cm long.
When did the last aurochs die?
The last known aurochs died in 1627 in Poland.
Where did aurochs live?
They lived across Europe, North Africa, and much of Asia, from western Europe to parts of East Asia.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Aurochs
    Supports: General description, range, size, extinction date, and note that the species was the ancestor of domestic cattle.
  2. Encyclopaedia Britannicahttps://www.britannica.com/animal/aurochs
    Supports: Species identity, physical description, and extinction in 1627 in central Poland.
  3. PubMed Centralhttps://pmc.ncbi.nlm.nih.gov/articles/PMC2858146/
    Supports: Range across Eurasia and North Africa, wild ancestor status, and extinction linked to hunting and habitat reduction.
  4. Sciencehttps://www.science.org/doi/10.1126/science.350.6265.1144
    Supports: Approximate shoulder height, size, domestication context, and extinction in 1627.
  5. BBC Newshttps://www.bbc.com/news/articles/cx21ljrj5klo
    Supports: Overview of aurochs, range in Britain, and extinction timeline.