Record-breaking arctic fox walks more than a marathon a day to reach Canada

Norwegian researchers say an arctic fox has walked from northern Norway to Canada's far north, a distance of 4,415 kilometres (2,737 miles), in 76 days.

The Norwegian Polar Institute says the young female fox left Norway's Svalbard archipelago on March 1 2018 and reached Canada's Ellesmere Island by way of Greenland on July 1 2018.

The institute says the trek is among the longest recorded for an arctic fox.

The institute said in a research article it was able to monitor the small fox's movements across extensive stretches of sea ice and glaciers with a tracking device put on the animal in July 2017.

The state-run agency says the roughly two-year-old female moved at an average rate of 46.3 kilometres per day (28.7 miles per day).