Elasmotherium: the so-called Siberian unicorn was a rhino
Elasmotherium is often called the Siberian unicorn. It was a rhino, not a horse. Its skull had a large raised area associated with a horn. Artwork often gives it a very long horn. The exact size of that horn is harder to establish than the skull's shape. A fossil skull preserves the bony support more readily than the full horn. The outer shape in a painting therefore includes an estimate. A large horn in artwork should not be read as an exact fossil measurement. [1] [Further source]
An old animal with a newer date
Scientists once thought this rhino vanished much earlier. Research reported in 2018 dated fossils to about 39,000 years ago. That placed its survival much closer to the present. Modern humans were already alive by then. The dates alone do not prove that people encountered or hunted it. Dating changes the place of an animal on the timeline. It can show that two kinds of animals existed during the same broad period. Sharing a period still differs from sharing one particular location. [1] [Further source]
A life tied to grass
Its teeth and chemical evidence point to a strong dependence on grass. That diet could become a problem when environments changed. A specialist has fewer alternatives when its main food becomes scarce. Researchers linked its decline to changes in climate and vegetation. They did not need a mythical explanation for its disappearance. Grasslands are not all alike in the food they provide. Changes in rainfall and temperature can change the plants growing there. A grazing animal has to cope with those changes even when the landscape still looks open. [1] [Further source]
The limits of the unicorn picture
The unicorn nickname makes the animal easy to remember. It can also hide its real identity. This was part of the long and varied history of rhinos. Its fossils record a large grazer facing a changing world. The real animal is interesting without turning it into a horse with magic. Rhinos have included a wider range of forms than the living species alone suggest. Fossils help recover some of that lost variety. Elasmotherium adds a large, unusual branch to that history. [1] [Further source]