Stefano Unterthiner (Italy) travelled to Bialowieza National Park in the winter to photograph one of Europe's great conservation success stories - the European bison. These animals became extinct in the wild during the 1920s but today a herd of 1,400 live in the forested parts of the park, the result of a re-introduction programme in the 1950s. Diego Lopez (Spain) tracked down spotted sousliks in central Poland, one of the last European strongholds of this endangered species.

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