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

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

Over this time, wolves have had to endure numerous changes in the planet’s climate. The cycles of the Ice Ages repeatedly changed their habitat and available prey, providing an insight into how modern ...

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 ...