Pete Oxford / Green moray eel (Gymnothorax funebris) Lighthouse Reef Atoll, Belize.

Flip Nicklin / Bearded Seal (Erignathus barbatus) male resting on ice floe with head dyed red from the high iron content of ocean mud in which he hunts for shrimp and clams, Svalbard, arctic Norway

Heike Odermatt / Svalbard Reindeer (Rangifer tarandus platyrhynchus) running, Svalbard, Norway

Heike Odermatt / Svalbard Reindeer (Rangifer tarandus platyrhynchus) pair, Svalbard, Norway

Heike Odermatt / Atlantic Puffin (Fratercula arctica) on cliff, Kross Fjord, Spitsbergen, Svalbard, Norway

Heike Odermatt / Minden / Walrus (Odobenus rosmarus), Svalbard, Norway

Johannes Melchers/ BIA / Ruddy Turnstone (Arenaria interpres), Finnmark, Norway

Heike Odermatt / Bearded Seal (Erignathus barbatus) on ice floe, Svalbard, Norway

Heike Odermatt / Bearded Seal (Erignathus barbatus) on ice floe, Svalbard, Norway

Heike Odermatt / Bearded Seal (Erignathus barbatus) on ice floe with head dyed from high iron content in prey, Svalbard, Norway

Heike Odermatt / Creek flowing through ice with glacier and mountain in background, Comfortlessbreen, Engelsbukta, Spitsbergen, Svalbard, Norway

Heike Odermatt / Glacier and mountains, Comfortlessbreen, Engelsbukta, Spitsbergen, Svalbard, Norway

Heike Odermatt / Glacier, Comfortlessbreen, Engelsbukta, Spitsbergen, Svalbard, Norway