<p>A <a href="http://www.nhm.ac.uk/visit/wpy/gallery/2015/images/mammals/4965/a-tale-of-two-foxes.html">red fox carries off the partially-eaten carcass of an Arctic fox</a> it killed three hours earlier to store for later. The larger red fox is both a competitor—the two species eat small mammals like lemmings—and a predator.</p>

Two Foxes

A red fox carries off the partially-eaten carcass of an Arctic fox it killed three hours earlier to store for later. The larger red fox is both a competitor—the two species eat small mammals like lemmings—and a predator.

Photograph by Don Gutoski, Wildlife Photographer of the Year 2015

See 11 of the Year's Best Wildlife Photographs

The winners and finalists in the Wildlife Photographer of the Year competition show stories of trust, survival, and romance in the wild.

A photograph of a red fox dragging off its eviscerated dinner—an Arctic fox—in the frozen Canadian landscape has taken the top prize in the 51st Wildlife Photographer of the Year competition.

This image of survival was one of the "strongest single storytelling photographs I have seen," said judge Kathy Moran, National Geographic magazine's senior editor for natural history projects. (See the winners from last year's competition.)

Moran noted that the image worked on several levels, capturing dramatic behavior while at the same time telling the story of changing climates. A warming subarctic has enabled the northward expansion of the red fox into Arctic fox territory, where the two species come into conflict.

The picture beat out over 42,000 entries across 18

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