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 ...

Add Yahoo as a preferred source to see more of our stories on Google. On four separate occasions, Wolf 907F seized power as the alpha female leader of the Junction Butte Pack in Yellowstone National ...

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

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

What do gray wolves, elephants, and parrotfish have in common? They're all keystone species, which means they have an ...

In Yellowstone National Park — where gray wolves were reintroduced starting in 1995 — researchers have gone back and forth on whether the restoration of wolves has impacted the ecosystem. The idea is ...

Wolves are a remarkably adaptable, highly intelligent, sociable group of mammals, inhabiting a variety of ecosystems from ...

When the U.S. Fish and Wildlife Service reintroduced 14 gray wolves to Yellowstone National Park in 1995, the animals were, in some ways, stepping into a new world. After humans hunted wolves to ...

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 ...