Millions of years ago, a pony-sized, hornless rhino wandered through the woods and munched on leaves in what is now northern Nunavut, making it the northern-most rhino ever found.

A new study published on Tuesday identifies it as a new species, and offers an intriguing explanation for how it got there.

was about the size of a modern Indian rhinoceros and far smaller than an African rhino, standing about a metre at the shoulder, said Danielle Fraser, lead author of the new study published in the journal Nature Ecology and Evolution .

Researchers found more than 70 per cent of the animal's skeleton in the Haughton Crater on Devon Island, about 1,000 kilometres north of the Arctic Circle — beating the record for the northern-most rhino previously set by a Yukon specimen .

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