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

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

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

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

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

Hippopotamus (Hippopotamus amphibius), grazing at the bank of the Chobe River next to a little bird, 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

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

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

"African Elephants (Loxodonta africana) breeding herd drinking at the bank of the Chobe River, in the evening light, Chobe National Park, Botswana, Africa"

"African Elephants (Loxodonta africana), females leaving the water after having crossed the Chobe River, in the evening light, Chobe National Park, Botswana, Africa"

"Hippopotamus (Hippopotamus amphibius) bull leaving the water, and Nile Crocodiles (Crocodylus niloticus), Sunset Dam, Kruger National Park, South Africa, 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) in the Chobe River backlit at sunset, Chobe National Park, Botswana, Africa"

"Chacma Baboon (Papio ursinus) sitting on the ground in the evening light, Chobe National Park, Chobe River, Botswana, Africa"

Flusspferd (Hippopotamus amphibius) im Chobe-Fluss im Gegenlicht bei Sonnenuntergang, Chobe-Nationalpark, Botswana, Afrika

"Hippopotamus (Hippopotamuspotamus amphibicus) Walking on a sandbank, Luangwa River, South Luangwa National Park, Zambia, Africa"

"Hippos (Hippopotamus amphibicus), standing in water, aerial view, in the early morning light, Luangwa River, South Luangwa National Park, Zambia, Africa"

"Hippos (Hippopotamus amphibicus), standing in water, aerial view, in the early morning light, Luangwa River, South Luangwa National Park, Zambia, Africa"

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