London’s Natural History Museum recently revealed the winners of their nature photography competition. The winning photograph, “A Tale of Two Foxes,” was taken by an amateur photographer, Don Gutoski, in Canada’s Wapusk National Park. The photo shows a red fox carrying the carcass of an Arctic fox in its mouth, after it attacked and killed the fox.

The unusual incident was partly a result of climate change. Kathy Moran, one of the judges and a senior editor at National Geographic, said, "As it gets warmer in the Arctic and sub-Arctic and the red fox can move further north into the territory occupied by the Arctic fox, you are going to get increasingly these kinds of tensions."

Over 42,000 people entered the contest, from about 100 countries and alongside the “Best in Show,” the competition chose winning photographers in 18 categories.