After cautious introductions, the bioengineered animals are eating, playing and chasing prey together ...

A new study documents the complex interactions between cougars and gray wolves in Yellowstone National Park and finds their “enemies without benefits” relationship is driven by competition: wolves ...

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 ...

Wolves have been seen as a fearsome animal to many for over a century. Because of this and the fact that they are opportunistic hunters who will not hesitate to hunt a weak livestock animal, states ...

For thousands of years, wolves occupied a range of North American habitats stretching from Arctic tundra to deserts. Their ...

Fossil and modern wolf teeth show that as winters grow warmer and snow declines, gray wolves are forced to work harder for food.