Followed for 1 year and 1 month, from August 2010 to October 2011, across 240 recorded positions.
It ranged between 65°N and 74°N, never leaving the northern hemisphere.
The water and air it moved through ran from -20°C to 6°C.
It averaged 37.1 km a day, every day, across the whole tracking period.
It finished 154 km from where it started, roughly back in the same region.
Of the 320 species followed here, this animal covered more ground than 71% of them.