Polar Obsession

Paul Nicklen's, pics from a Telegraph Gallery

In the Arctic spring, meltwater channels drain toward and down a seal hole, returning to the sea

A large bull walrus returns to the shores of Prins Karl Forland after diving and feeding on clams. Svalbard, Norway

Narwhals dive deep under the ice to feed on Arctic cod, then return to the surface to breathe and raise their tusks high in the air. Lancaster Sound, Nunavut, Canada