Followed for 5 years, from June 2018 to June 2024, across 1,587 recorded positions.
It ranged between 53°N and 58°N, never leaving the northern hemisphere.
The water and air it moved through ran from -2°C to 21°C.
It averaged 14.8 km a day, every day, across the whole tracking period.
It finished 157 km from where it started, roughly back in the same region.
Of the 320 species followed here, this animal covered more ground than 87% of them.