Deep in the frozen forests of Russia's far east, one of nature's most elusive — and surely most majestic — predators has been staging a quiet comeback. Siberia's tigers, also known as Amur tigers, are the largest subspecies of the great cats of Asia. They have survived wars, poaching and extensive habitat loss to claw their way back from just a handful of animals to a renewed position of viability.
In a football field-sized enclosure, about an hour from the city of Vladivostok, Elena and Pavlik are good examples of why that's happening. The 15-month-old male and female siblings are, for the moment, the only residents of the Amur Tiger Center near the village of Alekseevka.