Today, Yellowstone National Park in the United States is one of the very best places on earth to see wolves in the wild – and we can thank Douglas Smith for that.

Twenty-three years ago, Doug and his team at the Yellowstone Wolf Restoration Project reintroduced 41 wild wolves back into the park, at a time when they’d been virtually wiped out across North America.

Doug’s been with Yellowstone’s wolves ever since then and he’s seen the wild packs bounce back every step of the way – and the park’s flora and fauna are thriving as a result.

In this intriguing episode of Wild Lives by Faunographic, Doug reveals exactly how the wolves evolved to become the icons of Yellowstone that they are today, and shares what these fascinating predators have taught him about life.