Hippopotamus (Hippopotamus amphibius) - Close-up. In the the Chobe River. Photographed from a boat. Chobe National Park, Botswana.

Hippopotamus (Hippopotamus amphibius), grazing at the bank of the Chobe River, Chobe National Park, Botswana, Africa

Hippopotamus (Hippopotamus amphibius), grazing at the bank of the Chobe River, Chobe National Park, Botswana, Africa

Hippopotamus (Hippopotamus amphibius), with wet skin at the bank of the Chobe River, Chobe National Park, Botswana, Africa

Hippopotamus (Hippopotamus amphibius) - Bull enters the Chobe River. Photographed from a boat. Chobe National Park, Botswana.

Hippopotamus (Hippopotamus amphibius), grazing bull in the evening light at the bank of the Chobe River, Chobe National Park, Botswana, Africa

Hippopotamus (Hippopotamus amphibius), grazing at the bank of the Chobe River, with a Red-billed Oxpecker (Buphagus erythrorhynchus), Chobe National Park, Botswana, Africa

Hippopotamus (Hippopotamus amphibius), bull just entered the Chobe River, on its back a Red-billed Oxpecker (Buphagus erythrorhynchus), Chobe National Park, Botswana, Africa

Burchell's Zebra (Equus quagga burchelli) in the water, crossing the Chobe River, Chobe National Park, Botswana, Africa

Hippopotamus (Hippopotamus amphibius) - Grazing at the bank of the Chobe River next to a little bird. Photographed from a boat. Chobe National Park, Botswana.

Cape Buffalo (Syncerus caffer caffer), bull swimming through the Chobe River, Chobe National Park, Botswana, Africa

African Jacana (Actophilornis africanus), in the shallow water near the bank of the Chobe River, Chobe National Park, Botswana, Africa

"Hippopotamus (Hippopotamus amphibius) in the Chobe River backlit at sunset, Chobe National Park, Botswana, Africa"

"Hippopotamus (Hippopotamus amphibius), Chobe National Park, Kasane, North-West District, Botswana, Africa"

"Hippopotamus (Hippopotamus amphibius), Chobe National Park, Kasane, North-West District, Botswana, Africa"

"Hippopotamus (Hippopotamus amphibius), Chobe National Park, Kasane, North-West District, Botswana, Africa"

"Hippopotamus (Hippopotamus amphibius), Chobe National Park, Kasane, North-West District, Botswana, Africa"

"Hippopotamuses (Hippopotamus amphibius), Chobe National Park, Kasane, North-West District, Botswana, Africa"

"Hippopotamus (Hippopotamus amphibius), Chobe National Park, Kasane, North-West District, Botswana, Africa"

"Hippopotamus (Hippopotamus amphibius), Chobe National Park, Kasane, North-West District, Botswana, Africa"

"African Elephant (Loxodonta africana), drinking at the river, Kasane, Chobe National Park, Botswana, Africa"

"African Elephant (Loxodonta africana), drinking at the river, Kasane, Chobe National Park, Botswana, Africa"

"Hippos (Hippopotamus amphibius) in the Luangwa River, South Luangwa National Park, Zambia, Africa"

"African elephants (Loxodonta africana), herd drinking at the river, Kasane, Chobe National Park, Botswana, Africa"

Hippopotamus (Hippopotamus amphibius) in the water, close-up, in the the Chobe River, Chobe National Park, Botswana, Africa