Wild aurochs and domestic cattle are the same animal at different points of the domestication process. Domestic breeding lines have been established long enough to produce reliably manageable stock, but the wild population persists in the Heartlands and should not be approached as though it shares the temperament of a barn animal.
Physical Description
The aurochs is a massively built bovine, significantly larger than other cattle breeds. The body is deep-chested and heavily muscled, carried on legs built for rough terrain as much as open plain. The coat is dark brown to near-black in bulls, lighter in cows, with a pale stripe running the length of the spine. The horns sweep forward and upward from the skull in a wide arc, reaching up to three feet in length in mature bulls. The head is carried lower than domestic cattle, with a broad forehead and a directness to the gaze that experienced hunters describe as categorically different from domesticated stock.
Wild Behavior
Aurochs are grazers and browsers occupying forest edge, river valley, and open plain across the Heartlands basin. They are not migratory in the way of cerostim but move seasonally across established ranges following forage and water. Herds are typically small - a dominant bull, several cows, and calves - with younger bulls moving in loose bachelor groups at the margins.
They are passive toward humans and most predators at distance. A cornered aurochs is a different problem. Bulls will charge without significant warning when threatened, and a direct hit from a mature bull has killed horses. Stone drakes take aurochs, but selectively - calves and isolated cows are preferred targets. A healthy bull is a serious undertaking even for a drake.
Domesticated Behavior & Uses
Domestic cattle in the Heartlands are descended from aurochs stock and retain more of the wild type’s size and temperament than breeds from more settled regions. They are used for meat, milk, hide, and draft labor as oxen. Calves taken young and raised in human company are manageable. Adult wild aurochs cannot be domesticated. Wild bulls occasionally challenge or infiltrate domestic herds, which presents both a management problem and a danger to handlers.