YELLOWSTONE NATIONAL PARK, USA

Unusual guides to the most beautiful natural parks in the world

An episode from the series TWENTY MASTERPIECES OF NATURE

Synopsis

North America has long been known for its rich biodiversity.

In the West, wildlife can still enjoy protected expanses like Yellowstone Park, the country's oldest. Coiled in the Rocky Mountains, it is a true open-air encyclopedia of nature.

But brucellosis, eradicated everywhere else, still rages among the park's large herbivores. Elks are the most at risk.