Results 5 results found Hippopotamus (Hippos) wallowing in Hippo pool, South Luangwa National Park, Zambia, Africa Hippopotamus (Hippopotamus amphibius), Serengeti National Park, Tanzania, East Africa, Africa Hippopotamus (Hippopotamus amphibius) in a hippo pool, Serengeti National Park, Tanzania, East Africa, Africa Hippopotamus (Hippopotamus amphibius) in a hippo pool, Serengeti National Park, Tanzania, East Africa, Africa Hippo spraying water in a pool, Maasai Mara, Kenya, East Africa, Africa Hippo Pool Hippopotamus (Hippopotamus amphibius), yawning in Retina hippo pool, Serengeti National Park, Tanzania, Africa A hippo, Hippopotamusᅠamphibius, yawns, head above water in a dam pool.