Followed for 1 year and 11 months, from October 2015 to September 2017, across 211 recorded positions.
It ranged between 53°N and 82°N, never leaving the northern hemisphere.
The water and air it moved through ran from -6°C to 20°C.
It averaged 32.6 km a day, every day, across the whole tracking period.
It finished within 44 km of where it started, a round trip closed almost exactly.
Of the 320 species followed here, this animal covered more ground than 80% of them.