INDEX F P features, 5, 8, 9, predators, 19 10–11, 16, 18 R food, 17, 21, 22, 26 ranges, 12, 14–15 H S habitats, 5, 9, 12 sizes, 7, 26, 27 herds, 5, 6, 17, 18, 19, 29 L life spans, 25