Followed for 2 years, from June 2014 to June 2017, across 131 recorded positions.
It ranged between 57°N and 70°N, never leaving the northern hemisphere.
The water and air it moved through ran from 1°C to 13°C.
It averaged 12.1 km a day, every day, across the whole tracking period.
Its last fix was 1,321 km from its first, so the track we have is a one-way journey rather than a closed loop.
Of the 320 species followed here, this animal covered more ground than 65% of them.