A powerful elk stag charges a grey wolf in Yellowstone National Park, USA, showcasing the raw intensity of predator-prey interactions in the wild.
Elk – or moose as they're known in North America, are the largest deer species in the world and truly awe-inspiring. A bull can reach 2 metres at the shoulder and weigh up to 700 kg, while their enormous, palmate antlers make them instantly recognisa... [463 chars]