Followed for 11 months, from June 2002 to May 2003, across 110 recorded positions.
It ranged between 37°N and 60°N, never leaving the northern hemisphere.
The water and air it moved through ran from 3°C to 12°C.
It averaged 97.5 km a day, every day, across the whole tracking period.
Its last fix was 2,048 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 87% of them.