Lions are the only cats that live in groups, which are called prides. Prides are family units that may include up

 to three males, a dozen or so females, and their young. All of a pride's lionesses are related, and female cubs typically stay with the group as they age. Young males eventually leave and establish their own prides by taking over a group headed by another male.

Only male lions boast manes, the impressive fringe of long hair that encircles their heads. Males defend the pride's territory, which may include some 100 square miles (259 square kilometers) of grasslands, scrub, or open woodlands. These intimidating animals mark the area with urine, roar menacingly to warn intruders, and chase off animals that encroach on their turf.

Female lions are the pride's primary hunters. They often work together to prey upon antelopes, zebras, wildebeest, and other large animals of the open grasslands. Many of these animals are faster than lions, so teamwork pays off.

After the hunt, the group effort often degenerates to squabbling over the sharing of the kill, with cubs at the bottom of the pecking order. Young lions do not help to hunt until they are about a year old. Lions will hunt alone if the opportunity presents itself, and they also steal kills from hyenas or wild dogs.

Lions have been celebrated throughout history for their courage and strength. They once roamed most of Africa and parts of Asia and Europe. Today they are found only in parts of sub-Saharan Africa, except for one very small population of Asian lions that survives in India's Gir Forest.

These very large, powerful eagles are also striking in appearance. They are dark but dramatically colored with white tail, shoulders, rump, thighs and forehead.

These eagles are believed to breed only in far eastern Russia, along the coasts and surrounding islands of the Sea of Okhotsk and Bering Sea. They are most common on the Kamchatka Peninsula.

Each winter, many Steller's sea eagles migrate from their breeding grounds to Japan, and a few reach Korea or even farther afield. Other individuals do not migrate, but simply move to open water as winter approaches.

Open water provides these eagles with their main food sources along coastlines and lakes. In their breeding grounds, Steller's sea eagles subsist largely on salmon, and they both hunt and scavenge for this resource. Annual salmon runs provide an enormous bounty and Steller's sea eagle nests are typically located near coasts and rivers where these fish appear en masse.

These birds of prey hunt from a perch or from flight by diving and clutching prey in their talons. They also stand in shallow water or on the ice and grab passing fish when the opportunity arises. Like other eagles, Steller's also steal food from other birds.

In Japan, Steller's sea eagles feast on cod. In addition to fish, they eat crabs, shellfish, squid, small animals, ducks, gulls, and carrion.

Steller's sea eagles do not occur in large numbers, but their populations appear to be stable. Their feathers were once highly prized, but today these magnificent birds are protected throughout their range. They are especially revered in Japan, where they are known as O-washi