1383-17 - Hippopotamus Amphibius - otherwise know as Hippo are plentiful in the Luangwa River. The open jaw is often used as a warning by male hippos looking after their females.
832-400132 - Hippo, (Hippopotamus amphibious) is challenging, open mouth and teeth. Angry facial expression. Behind the hippo pod. Kwando River, Bwabwata National Park, Namibia, Africa
832-398584 - Hippopotamus (Hippopotamus amphibius) under water looking into camera. Black and white wildlife image. Hwange National Park, Zimbabwe, Africa
832-398577 - Hippos (Hippopotamus amphibius) yawning, the animal opens its mouth upward at the sky. Black and white image. Hwange National Park, Zimbabwe, Africa
1174-10801 - A hippo, Hippopotamus amphibius, yawns while in the water, teeth visible, Londolozi Wildlife Reserve, Sabi Sands, Greater Kruger National Park, South Africa
1174-10794 - A hippo, Hippopotamus amphibius, blows air though its nose while in a waterhole, Londolozi Wildlife Reserve, Sabi Sands, Greater Kruger National Park, South Africa
1116-49180 - Group of Hippopotamus (Hippopotamus amphibious, ) with Red-billed Oxpeckers (Buphagus erythrorhynchus) lie on sandy river bank in Katavi National Park, Tanzania
1116-50379 - A backlit male hippopotamus (Hippopotamus amphibius) stands half-submerged in water, staring menacingly towards the camera. His skin is pink and grey, and one ear is folded back. Grumeti Serengeti Tented Camp, Serengeti National Park; Tanzania
1174-9234 - A hippo, Hippopotamus amphibius, raises its head above the water and closes its eyes in the sun, Londolozi Wildlife Reserve, Greater Kruger National Park, South Africa
1174-9233 - A pod of hippos, Hippopotamus amphibius, rest in a water hole, one yawning, Londolozi Wildlife Reserve, Greater Kruger National Park, South Africa