<i>Ursus maritimus</i> on sea ice close to Svalbard
<a href="//commons.wikimedia.org/wiki/User:Hgrobe" title="User:Hgrobe">Hannes Grobe</a> 21:16, 12 November 2006 (UTC), Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
CC BY 2.5
own work, <a href="//commons.wikimedia.org/w/index.php?title=Category:Polarstern_(ship)&amp;action=edit&amp;redlink=1" class="new" title="Category:Polarstern (ship) (page does not exist)">POLARSTERN</a> expedition ARK-VIII/2