A massive pack of 25 timberwolves hunting bison on the Arctic circle in northern Canada.
A massive pack of 25 timberwolves hunting bison on the Arctic circle in northern Canada. In mid-winter in Wood Buffalo National Park temperatures hover around -40C. The wolf pack, led by the alpha female, travel single-file through the deep snow to save energy. The size of the pack is a sign of how rich their prey base is during winter when the bison are more restricted by poor feeding and deep snow. The wolf packs in this National Park are the only wolves in the world that specialise in hunting bison ten times their size. They have grown to be the largest and most powerful wolves on earth
Photograph: Chadden Hunter/BBC NHU
A massive pack of 25 timberwolves hunting bison in northern Canada. The pack force the herd to stampede after hours of harrying them. Their hope is that a yearling will fall behind. This yearling’s fate was actually sealed by another member of the herd, which ran headlong into it
Photograph: BBC NHU
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