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Banner image: The partially-excavated听skeleton of the "Lehi horse,"听which was found in the backyard of a couple living near Provo, Utah. (Credit: Bridger Hill)

A new analysis of a horse previously believed to be from the Ice Age shows that the animal actually died just a few hundred years ago鈥攁nd was raised, ridden and cared for by Native peoples. The study sheds light on the early relationships between horses and their guardians in the Americas.

The findings, , are the latest in the saga of the 鈥淟ehi horse.鈥�

In 2018, a Utah couple was doing landscaping in their backyard near the city of Provo when they unearthed something surprising: an almost complete skeleton of a horse about the size of a smaller pony. Scientists and the media took note. Preliminary data suggested that the horse might be more than 10,000 years old.

鈥淚t was found in the ground in these geologic deposits from the Pleistocene鈥攖he last Ice Age,鈥� said William Taylor, lead author of the new research and a curator of archaeology at the CU Museum of Natural History at the 精品SM在线影片.

Based on a detailed study of the horse鈥檚 bones and DNA, however, Taylor and his colleagues concluded that it wasn鈥檛 an Ice Age animal at all. Instead, the animal was a domesticated horse that had likely belonged to Ute or Shoshone communities before Europeans had a permanent presence in the region.

But Taylor is far from disappointed. He said the animal reveals valuable information about how Indigenous groups in the West looked after their horses.听

鈥淭his study demonstrates a very sophisticated relationship between Indigenous peoples and horses,鈥� said Taylor, also an assistant professor in the Department of Anthropology. 鈥淚t also tells us that there might be a lot more important clues to the human-horse story contained in the horse bones that are out there in libraries and museum collections.鈥澨�

Written in bone

Taylor leads an effort funded by the U.S. National Science Foundation, called 鈥�.鈥� And he鈥檚 something akin to a forensic scientist鈥攅xcept he studies the remains of ancient animals, from horses to reindeer. Taylor听recently helped to organize the听digital exhibit听"Horses in the North American West" from the CU museum. And he said that researchers can learn a lot by collecting the clues hidden in bones.

鈥淭he skeleton that you or I have is a chronicle of what we鈥檝e done in our lives,鈥� Taylor said. 鈥淚f I were to keel over right now, and you looked at my skeleton, you鈥檇 see that I was right-handed or that I spend most of my hours at a computer.鈥�

When Taylor first laid eyes on the Lehi horse in 2018, he was immediately skeptical that it was an Ice Age fossil. Ancient horses first evolved in North America and were common during the Pleistocene, he said, going extinct at about the same time as many other large mammals like mammoths. This horse, however, showed characteristic fractures in the vertebrae along its back.听

鈥淭hat was an eyebrow raiser,鈥� Taylor said.

He explained that such fractures often occur when a human body bangs repeatedly into a horse鈥檚 spine during riding鈥攖hey rarely show up in wild animals, and are often most pronounced in horses ridden without a frame saddle. So he and his colleagues decided to dig deeper.

DNA analyses by coauthors at the University of Toulouse in France revealed that the Lehi horse was a roughly 12-year-old female belonging to the species Equus caballus (today鈥檚 domestic horse). Radiocarbon dating showed that it had died sometime after the late 17th century. The horse also seemed to be suffering from arthritis in several of its limbs.

鈥淭he life of a domestic horse can be a hard one, and it leaves a lot of impacts on the skeleton,鈥� Taylor said.

He added that scientists originally believed that the horse was so ancient in part because of its location deep in the sands along the edge of Utah Lake: Its caretakers appear to have dug a hole and intentionally buried the animal after it died, making it look initially as if it had come from Ice Age sediments.

And despite the animal鈥檚 injuries, which would have probably made the Lehi horse lame, people had continued to care for the mare鈥攑ossibly because they were breeding her with stallions in their herd.

Hidden history

For Carlton Shield Chief Gover, a coauthor of the new study, the research is another example of the buried history of Indigenous groups and horses.

He explained that most researchers have tended to view this relationship through a European lens: Spaniards brought the animals to the Americas on boats, and white settlers shaped how Native peoples interacted with them.

But that view glosses over just how uniquely Indigenous the horse became in the Americas after those first introductions.听

鈥淭here was a lot going on that Europeans didn鈥檛 see,鈥� said Shield Chief Gover, a graduate student at 精品SM在线影片 and a tribal citizen of the Pawnee Nation. 鈥淭here was a 200-year period where populations in the Great Plains and the West were adapting their cultures to the horse.鈥�

For many Plains groups, horses quickly changed nearly every aspect of life.听

鈥淭here was more raiding and fewer battles,鈥� Shield Chief Gover said. 鈥淗orses became deeply integrated into Plains cultures, and changed the way people moved, traded, hunted and more.鈥�

He and Taylor hope that their research will, alongside Indigenous oral traditions, help to shed light on those stories. Taylor, for his part, suspects that the Lehi horse may not be the only set of remains mistakenly shelved with Ice Age animals in museum collections around the country.

鈥淚 think there are a lot more out there like this,鈥� he said.

Coauthors on the new study include researchers from the University of Utah;听University of New Mexico;听Colorado School of Mines;听Brigham Young University;听Bureau of Land Management Colorado State Office;听Northwest University in China;听University of Cape Town in South Africa;听University of Toulouse in France;听Max Planck Institute for the Science of Human History in Germany; and the University of Queensland in Australia.听听