Elasmotherium, often called the Siberian unicorn, was a massive Ice Age rhinoceros with a single giant horn possibly over one meter long. Standing over two meters at the shoulder and weighing several tons, it roamed the grasslands of Eurasia. Unlike modern rhinos, Elasmotherium had long legs for fast running and may have inspired ancient unicorn legends due to its striking appearance. | The Update Zone

The Full Story of Unicorns: Yes, They Were Real