The Thomson's gazelle can reach speeds of 40 miles an hour ... until they are old enough to join the mother's herd, in the case of females, or a bachelor herd.

For the past half hour a mother cheetah named Etta has been sitting in the shade with her four young cubs, eyeing a herd of Thomson ... on a luckless young gazelle. As Etta drags the carcass ...

But for wildebeest, zebra and gazelle, the exuberant foliage is both ... We all know about the cheetah's electrifying speed. Large nostrils and an enlarged heart and lungs help the world's fastest ...

To see a cheetah bound across the Serengeti savanna; to spy a lioness begin her stealthy attack on a grazing herd of gazelle; to gaze at the silhouettes of a giraffe and an acacia tree at sunset ...