Followed for 3 years and 5 months, from August 2016 to December 2019, across 839 recorded positions.
It ranged between 53°N and 68°N, never leaving the northern hemisphere.
The water and air it moved through ran from 0°C to 15°C.
It averaged 17.9 km a day, every day, across the whole tracking period.
It finished 406 km from where it started, roughly back in the same region.
Of the 320 species followed here, this animal covered more ground than 78% of them.