A new study documents the complex interactions between cougars and gray wolves in Yellowstone National Park and finds their ...

From packs of wolves to prides of lions, scientists are uncovering what really makes group hunting work — and where cooperation starts to break down.

On a remote Alaskan island, gray wolves are rewriting the rulebook by hunting sea otters — a behavior few scientists ever expected to see. Researchers are now uncovering how these coastal wolves ...

Large carnivores are both clashing and coexisting in the western United States. Although wolves dominate cougars and steal their prey, cougars' shift from elk- to deer-heavy diets, paired with a ...

Riders bunch herds up at night when wolves are most active, and they make sure calves stay close to their moms.

(FOX40.COM) — California wildlife officials have fitted satellite collars on five gray wolves in Northern California as part ...

Gray wolves are hunting sea otters. Scientists are studying how land predators adapt to ocean hunting and what this means for ecosystems.

Part 1. Cougar studies before and during wolf restoration. 1. Introduction and background ; 2. The northern Yellowstone landscape ; 3. Quantifying how species compete or coexist -- Part 2. Food ...

Across North America, mountain lions, bears and gray wolves have made a remarkable comeback over the last 50 years. Once nearly exterminated, these animals have been recovering their populations and ...

Many animals have been observed using tools. For example, chimps tear leaves off of branches and stick them into holes to pull out termites, and wild dingoes have been observed moving objects to stand ...

The “Tool-Using” Wolf Seeing a gray wolf haul a crab trap out of the ocean looks like a scene from a science documentary that forgot its own rules. In a short video from Canada’s Pacific coast, a ...