Snarling Wolf, Ely, Minnesota, 1998
Photograph by Joel Sartore
A remote-controlled "carcass cam" captures an inside view of a gray wolf fiercely guarding its meal at the International Wolf Center in Ely, Minnesota. Wolves at the center are provided with food, but wild populations generally hunt in packs. After a large kill, a single wolf can consume more than 20 pounds (9 kilograms) of meat.
