Elasmotherium sibiricum concept. Picture: W.S. Van der Merwe / Natural History Museum
It weighs more than 7,700 kilos and is likely to be the largest giant horn of all time. Elasmotherium sibiricum-Since "Siberian Unicorn" is known, the sight has been horrible.
Although Rhinoceros is a spectacular appearance, very little is known. That changed Monday when it was published in a paper Nature's ecology and evolution Siberian presenting the first DNA analysis of fossil unicorns.
Pavel Kosintsev, a paleontologist from the Ural Branch of the Russian Academy of Sciences, concluded that a Siberian Unicorn concluded that he died about 39,000 years ago, suggesting that modern humans and neanderthals share the epic eurasia over the last few years. On the floor. The rhinoceroses that had previously been calculated lasted 200,000 years ago.
Although humans are related to the disappearance of many species of megafauna, artificial mammals and giant whites, Kosintsev and his colleagues think that our ancestors have kept their rhino far away from climate change and that it is likely to disappear.
"It is impossible that human presence is extinct," said Chris Turney, climate scientist at New South Wales University, in a statement. "Siberian unicorns have done very wrong when ice cream began in Eurasia, a frozen fall in temperature brought on frozen ground and diminished the dry pasture that survived and reduced the impact on a large area."
Siberian Unicorn's first chronology of the extinction was questioned E. sibiricum The skulls were found in Kazakhstan in 2017. It was a skull of less than 29,000 years ago, but the measurement was not reliable, the collagen composition was not the perfect dating circuit.
Kosintsev and his colleagues decided to follow each measurement line of multiple assessment. The group gave Radiocarbon 23 days E. sibiricum The species extracted DNA from six specimens, and an ecological assessment of the fossil habitat by fossil and geological evidence.
The objects were between 39,000 and 50,000 years old, linked to the origin of anatomically modern humans in Eurasia. Also, it coincides with the same event of the disappearance of the Quaternary period, which lasted 50,000 and 4,000 years ago, and also included dramatic changes in climate. Approximately 40 kilograms of northern Eurasia species of 40 kilograms have been killed in this climate event, according to the study.
As natural climate change or human pressure excluded some of these species, controversy increased.
Read more: This ecologist leads to the Ancient South to the clues at the beginning
To review the impact of Siberian climate change on the unicorn, the researchers conducted an analysis of the isotope E. sibiricum to reconstruct the probable fountains of their fructose teeth, and found that these animals were highly specialized sheep breeders. Eurasian herbaceous Saiga, with more diversified diversities such as antelope, survived climate change 40,000 years ago. But pastures have fallen due to these fractures, the Siberia unicorn slowly disappeared.
There is always the possibility of being able to play the role of man at the end of this animal. But E. sibiricum rarely appears in works of human cave, and there is no record of bone bones in this period, so that the two species did not interact much, according to the study.
However, it is not surprising to see the place of man in the last days of the Unicorn of the Siberian, which is one of the most elegant Megafanon of the Pleistocene period.
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