Family members look out for one another; if one becomes separated from the rest, the others search for it. The group adjusts its traveling pace to accommodate the old and the weak. The females horseriding within a family observe a strict hierarchical system. A dominant mare always leads the group, while others follow her in single file, each with their foals directly behind them. The lowest- ranking mare is the last in line. Although the stallion is the dominant member of the family, he operates outside the system and has no special place in the line. Zebras are avid grazers. Both Burchell''s and Grevy''s zebras are in constant horseriding search of green pastures. In the dry season, they can live on coarse, dry grass only if they are within a short distance (usually horseriding no farther than 20 miles away) of water holes. Grevy''s zebras are now mainly restricted to parts of northern Kenya.

Cheetahs do not roar like lions, but they purr, hiss, whine and growl. They also make a variety of contact calls; the most common is a birdlike chirping sound. Once a cheetah has made a kill, it eats quickly and keeps an eye out for scavengers lions; leopards, hyenas, vultures and jackals will occasionally take away their kills. Although cheetahs usually prey on the smaller antelopes such as Thomson''s gazelles and impalas, they can catch wildebeests and zebras if hunting together. They also hunt hares and other small mammals and birds. Although known as an animal of the open plains that relies on speed to catch its prey, research has shown that the cheetah depends on cover to stalk prey. The cheetah gets as close to the prey as possible, then in a burst of speed tries to outrun its quarry. Once the cheetah closes in, it knocks the prey to the ground with its paw.

Lions may hunt at any hour, but they typically go after large prey at night. They hunt together to increase their success rate, since prey can be difficult to catch and can outrun a single lion. The lions fan out along a broad front or semicircle to creep up on prey. Once with within striking distance, they bound in among the startled animals, knock one down and kill it with a bite to the neck or throat. Hunts are successful about half the time. Cooperative hunting enables lions to take prey as large as wildebeests, zebras, buffaloes, young elephants, rhinos, hippos and giraffes, any of which can provide several meals for the pride. Mice, lizards, tortoises, warthogs, antelopes and even crocodiles also form part of a lion''s diet. Because they often take over kills made by hyenas, cheetahs and leopards, scavenged food provides more than 50 percent of their diets in areas like the Serengeti plains.