Followed for 2 years, from November 2020 to November 2023, across 1,448 recorded positions.
It ranged between 50°N and 68°N, never leaving the northern hemisphere.
The water and air it moved through ran from 2°C to 13°C.
It averaged 23.4 km a day, every day, across the whole tracking period.
It finished 180 km from where it started, roughly back in the same region.
Of the 320 species followed here, this animal covered more ground than 82% of them.