The savannas of Africa are the best known savannas. Some herbivores found in the savanna are antelopes, impalas, gazelles, buffalos, wildebeests, zebras, rhinos, giraffes, elephants, and warthogs. There is also a large number of carnivores, including cats (lions, leopards, cheetahs, servals), dogs (jackals, wild dogs), and hyenas. The vegetation in the Eastern African is also rich with grass and some scattered trees, mostly acacia trees. The dry season is the winter, from December to February it may not rain at all. But in the summer there is lots of rain.