The logging of the oaks and pines removes the food supply on which the area's wild boars depend.

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Lynx, deer and wild boars populate its woodlands, and golden eagles can often be spotted wheeling amongst the mountain peaks.

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Hunters complicated matters by importing Eurasian boars to the U.S. for sport.

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The boars are the tigers' main prey.

BBC: Last stand for Russia's tigers

The site comprises more than sixty multi-ton T-shaped limestone pillars, most of them engraved with bas-reliefs of dangerous animals: not the docile, edible bison and deer featured in Paleolithic cave paintings but ominous configurations of lions, foxes, boars, vultures, scorpions, spiders, and snakes.

NEWYORKER: The Sanctuary

On sale now: purple boars.

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