This story appears in the September 2019 issue of National Geographic magazine. In the blue light of an early Arctic morning ... The largest wolf, a yearling male, was a bully at 70 pounds ...

NATIONAL GEOGRAPHIC CREATIVE The end result, says Kelly, is likely to be a tremendous, irreversible loss of genetic diversity. But even if that weren’t the case, the Arctic’s wildlife would st ...

In the harsh northern reaches of Canada's Ellesmere Island, elusive arctic wolves share their secrets ... This is the most intimate film about wolf behavior ever made.

This story appears in the September 2019 issue of National Geographic magazine. Sergey Zimov, right, and his son, Nikita, run an Arctic research station in Cherskiy, Russia, along the Kolyma River.