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

Wolves usually rely on cooperation to survive. Hunting large prey such as elk typically involves multiple pack members ...

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

Wolves are experts at surviving in desert, forest, mountain, and Arctic habitats, generally relying on safety in numbers as ...

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