Wolves versus cougars... adapting to survive alongside one another

Cougars are loners, stealth hunters, whereas wolves hunt in packs. Direct confrontation between the two had to be avoided where possible; even a slight wound can become infected and could be fatal. Picture: AP

If you live among wolves, you must act like a wolf — Nikita Khrushchev

Big herbivores used to rule the roost in Yellowstone Park, home of Old Faithful. Bison herds roamed the forests and pastures. Theirs was an idyllic, laid-back existence. All they lacked was road sense; I almost collided with one in semi-darkness during a visit there in 1984.