Twist of the plot: the "unicorns" apparently roamed the Earth once, but were more like rhinoceroses than horses.
Researchers are learning more about diffuse rhinos called "Siberian unicorns" after the fossil DNA tests provide information about their extinction. Paleontologists say they were much longer than originally thought, and they lived until at least 39,000 years ago. This means that animals lived among humans.
Previously it was thought that they had become extinct between 100,000 and 200,000 years ago.
The study also says that the Elasmotherium sibiricum It probably died out because climate change destroyed its pastures and its food source, not because of humans.
The team's research was published in the journal Nature Ecology and Evolution.
Several fossils of dinosaurs and skeletons.
The Titanosaur, the largest dinosaur ever exhibited at the American Museum of Natural History, was presented at a press conference on January 14, 2016 in New York. The dinosaur was discovered in 2014, in the Patagonia region of Argentina. / AFP / DON EMMERT (Credit of the photo must read DON EMMERT / AFP / Getty Images)
JOHANNESBURG, SOUTH AFRICA, NOVEMBER 10 (SOUTH AFRICA): some of the newly discovered fossils seen at the Evolutionary Studies Institute, on November 10, 2015 in Johannesburg, South Africa. The institution's principal investigator, Dr. Jonah Choiniere, will announce the latest discovery of fossils believed to belong to a 200-million-year-old dinosaur discovered in the Karoo basin. (Photo by Simone Kley / Foto24 / Gallo Images / Getty Images)
TRENTON, CANADA SEPTEMBER 29: The Wankel Tyrannosaurus Rex, shown 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 room is reopened in 2019. (Photo by Nikki Kahn / The Washington Post through Getty Images)
TORONTO, ONTARIO, CANADA – 2015/08/21: Close-up of the skeleton of a dinosaur 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 more than one million visitors each year. (Photo by Roberto Machado Noa / LightRocket through Getty Images)
This photo taken on July 28, 2015 at the archeological site of Angeac-Charente, in southwestern France, shows bones of fossilized dinosaurs during their process of unearthing, a femur (R) of Sauropod dinosaur and an Ornithomimosaurus (Ostrich dinosaur, a new species of dinosaur identified on the site, where at least 43 specimens have been inventoried) dinosaur pimple (still in a clay bargain). The Angeac dinosaur fossil deposit is unique in France for its abundance; Of the thousands of fossils unearthed there, two previously unknown species have been identified. AFP PHOTO / THIBAUD MORITZ (Photo credit should read Thibaud MORITZ / AFP / Getty Images)
TORONTO, ON – JUNE 2: A fossil mold of an Archeopteryx lithographica, which lived in the Late Jurassic period, 148 million years ago. A new study suggests that feathers were less common among dinosaurs than previously believed. Interview Dr. David Evans of ROM about his new research that could shake the way we imagine dinosaurs. (Bernard Weil / Toronto Star through Getty Images)
A staff member poses with the most complete Stegosaurus skeleton in the world at the Natural History Museum 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 read JUSTIN TALLIS / AFP / Getty Images)
The photo taken on July 29, 2014 shows a 34 cm long phalanx of a Sauropoda dinosaur, discovered during excavations in Angeac-Charente, in the center-west of France. A paleontology student found the fossil on July 25. The largest sauropod thigh bone in the world was found on this site in the summer of 2010. The site was discovered in 2008 and actively searched since January 2010. AFP PHOTO / JEAN PIERRE MULLER (Photo credit: read JEAN PIERRE MULLER / AFP / Getty Images)
7.5 inch solid resin of a Giganotosaurus dinosaur tooth, the U-shaped groove along the root axis of the tooth is where the replacement tooth has been growing. (Photo by: Independent Picture Service / UIG through Getty Images)
Fossilized skull of a Pachycephalosaurus wyomingensis, thick-headed lizard, Cretaceous dinosaur. (Photo by: Education Images / UIG through Getty Images)
UNITED STATES – MARCH 15: Fossils of dinosaurs preserved in rock, Dinosaur Quarry, Dinosaur National Monument, Utah-Colorado, United States of America. Detail. (Photo by DeAgostini / Getty Images)
LAS VEGAS – SEPTEMBER 30: Carcharocles megalodon, which grew to the size of a school bus, is exhibited at the Venetian Resort Hotel Casino on September 30, one of the largest shark jaw sets in the world, comprised of about 180 Fossil teeth of the prehistoric species. 2009 in Las Vegas, Nevada. Auctioneers Bonhams & Butterfields expect the fossil to reach about USD 900,000-1.2 million when it will be auctioned on October 3 at the Venetian as part of its Natural History auction. The centerpiece of the 50 fossil batch that is being auctioned is a 66-million-year-old Tyrannosaurus rex skeleton named "Samson". The 40-foot-long female dinosaur fossil, excavated in South Dakota in 1992, contains about 170 bones and is said to be the third most complete T. rex skeleton ever discovered. Bonhams & Butterfields expects Samson to get more than USD 6 million in the auction. (Photo by Ethan Miller / Getty Images)
Footprint of dinosaur on rock, Otjihaenamaparero, Namibia, Africa (Photo by Hoberman Collection / UIG through Getty Images)
NOT 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 shown in the new exhibition & # 39; 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 will run until January 8, uses recent fossil finds, computer simulations and life-size models to track changes in thinking about the biology of dinosaurs in the past. Two decades. (Photo by Spencer Platt / Getty Images)
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