Reversal in history – "unicorns" have apparently toured the Earth once, but they were more like rhinoceroses than horses.
Researchers are learning more about fuzzy rhinos called "Siberian unicorns," after DNA tests of fossils are providing insight into their extinction. Paleontologists say they were out there for much longer than previously thought, living for at least 39,000 years. This means that animals lived among humans.
They were previously considered extinct between 100,000 and 200,000 years ago.
The study also says that the Elasmotherium sibiricum probably died because climate change decimated its prairies and source of food, not because of humans.
The team's research was published in the journal Nature Ecology and Evolution.
Various fossils of dinosaurs and skeletons
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Titanosaurus, the largest dinosaur ever exhibited at the American Museum of Natural History, is unveiled at a news conference on January 14, 2016 in New York. The dinosaur was discovered in 2014, in the Argentinian Patagonia region. / AFP / DON EMMERT (Photo credit should be DON EMMERT / AFP / Getty Images)
JOHANNESBURG, SOUTH AFRICA NOVEMBER 10 (SOUTH AFRICA): Some of the fossils recently discovered at the Institute for Evolutionary Studies on November 10, 2015 in Johannesburg, South Africa. The senior researcher at the institution, Dr Jonah Choiniere, will announce the latest discovery of fossil thinking belonging to a 200-million-year-old dinosaur that was discovered in the Karoo basin. (Photo by Simone Kley / Foto24 / Gallo Images / Getty Images)
TRENTON, CANADA September 29: Tyrannosaurus Wankel Rex shown standing at 12 feet high devouring a triceratops is a work-in-progress at Research Casting International in Trenton, Canada on Tuesday, September 29, 2015. The installation will be the centerpiece exhibit at the Smithsonian National Museum of American History, when the Fossil Hall reopens in 2019. (Photo by Nikki Kahn / The Washington Post via Getty Images)
TORONTO, ONTARIO, CANADA – 2015/08/21: Close up of a dinosaur's skeleton on display at the Royal Ontario Museum. The Royal Ontario Museum is a museum of art, world culture and natural history in Toronto, Canada. It is one of the largest museums in North America and attracts over one million visitors each year. (Photo by Roberto Machado Noa / LightRocket via Getty Images)
This photo taken on July 28, 2015 at the archaeological site of Angeac-Charente, southwest of France, shows dinosaur bones fossilized during the unearthing process, the femur of a sauropod dinosaur (R) and an Ornithomimosaur (Ostrich Dinosaur, a a new species of dinosaur identified at the site, where at least 43 specimens were inventoried) the dinosaur's tibia (still in a clay gangue). The fossil fossil deposit of Angeac is unique in France for its abundance; Of the thousands of fossils discovered there, two previously unknown species were identified. AFP PHOTO / THIBAUD MORITZ (Photo credit must be read Thibaud MORITZ / AFP / Getty Images)
TORONTO, ON – JUNE 02: A fossil cast of a lithographica Archeopteryx, which lived in the late Jurassic period, 148 million years ago. A new study suggests feathers were less common among dinosaurs than previously believed. Interview with Dr. David Evans of the ROM about his new research that could shake the way we imagine the dinosaurs. (Bernard Weil / Toronto Star via Getty Images)
A member of the team poses next to the world's most complete stegosaurus skeleton at the Museum of Natural History in London on December 3, 2014. The fossil is 560 cm long and 290 cm high and consists of more than 300 bones. AFP PHOTO / JUSTIN TALLIS (Photo credit should be read as JUSTIN TALLIS / AFP / Getty Images)
Photo taken on July 29, 2014 shows a 34 cm long phalanx of a Sauropoda dinosaur, discovered during excavations in Angeac-Charente, mid-west of France. A paleontology student found the fossil on July 25. The largest thigh bone Sauropoda was found at this site in the summer of 2010. The site was discovered in 2008 and has been actively searched since January 2010. AFP PHOTO / JEAN PIERRE MULLER read JEAN PIERRE MULLER / AFP / Getty Images)
Solid 7.5-inch resin molded from a Giganotosaurus dinosaur tooth, the U-shaped groove along the axis of the tooth root is where the replacement tooth has grown. (Photo: Independent Picture Service / UIG via Getty Images)
Fossilized skull of a Pachycephalosaurus wyomingensis, thick-headed lizard, Cretaceous dinosaur. (Photo: Education Images / UIG via Getty Images)
UNITED STATES – MARCH 15: Dinosaur fossils preserved in rock, dinosaur quarry, Dinosaur National Monument, Utah-Colorado, United States of America. Detail. (Photo by DeAgostini / Getty Images)
LAS VEGAS – SEPTEMBER 30: One of the largest sets of shark jaws in the world, consisting of about 180 fossil teeth of prehistoric species, Carcharocles megalodon, which grew to the size of a school bus, is displayed at the Venetian Resort Hotel Casino on September 30, 2009 in Las Vegas, Nevada. Auctioneers Bonhams & Butterfields expect the fossil to reach about $ 900,000 to $ 1.2 million when it is auctioned Oct. 3 at the Venetian as part of its Natural History auction. The centerpiece of the batch of 50 fossils being auctioned is a skeleton of Tyrannosaurus rex, 66 million years old, dubbed "Samson". The 40-foot-long female dinosaur fossil, excavated in South Dakota in 1992, contains about 170 bones and is considered the third most complete skeleton of rex ever discovered. Bonhams & Butterfields expects Samson to gross more than $ 6 million in the auction. (Photo by Ethan Miller / Getty Images)
Dinosaur footprint on rock, Otjihaenamaparero, Namibia, Africa (Photo by Hoberman Collection / UIG via Getty Images)
SPECIFIED – AUGUST 14: Mongolia, Gobi Desert, Bayanzag Valley, Egg of fossilized dinosaurs in the desert (Photo by DEA / CHRISTIAN RICCI / De Agostini / Getty Images)
NEW YORK – May 10: A fossil of a Microraptor from a 130-million-year-old forest that existed in what is now Liaoning Province, China is exhibited at the new exhibition "Dinosaurs: Ancient Fossils, New Discoveries" & # 39; ; at the American Museum of Natural History May 10, 2005 in New York City. The exhibition, which will open to the public on May 14 and begin on January 8, uses recent discoveries of fossils, computer simulations and full-size models to chart changes in thinking about dinosaur biology in the last two decades. (Photo by Spencer Platt / Getty Images)
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