Review Lions feed on large herbivores like zebras and giraffes. Elephants graze on grasses and break down plants, making the vegetation edible for smaller herbivores. Vultures eat meat left over by large predators. Choose the best topic sentence to introduce a paragraph containing these details. Animals in the African savanna depend on other animals in their ecosystem to survive. The African savanna is home to scavengers which survive off the remnants left by predators. The warm climate of the African savanna makes food plentiful for all animals.