Followed for 3 years and 2 months, from August 2017 to October 2020, across 327 recorded positions.
It ranged between 55°N and 65°N, never leaving the northern hemisphere.
The water and air it moved through ran from 0°C to 17°C.
It averaged 10.4 km a day, every day, across the whole tracking period.
It finished 223 km from where it started, roughly back in the same region.
Of the 320 species followed here, this animal covered more ground than 63% of them.