Male defassa waterbuck (Kobus ellipsiprymnus defassa), Masai Mara National Reserve, Kenya, East Africa, Africa

Male Defassa Waterbuck (Kobus ellipsiprymnus defassa), Masai Mara National Reserve, Kenya, East Africa, Africa

Male Defassa Waterbuck (Kobus ellipsiprymnus defassa), Masai Mara National Reserve, Kenya, East Africa, Africa

Male defassa waterbuck (Kobus ellipsiprymnus defassa), Masai Mara National Reserve, Kenya, East Africa, Africa

Male DeFassa Waterbuck (Kobus ellipsiprymnus dafassa), Kruger National Park, South Africa, Africa

Male Defassa Waterbuck (Kobus ellipsiprymnus defassa), Masai Mara National Reserve, Kenya, East Africa, Africa

An adult male common waterbuck (Kobus ellipsiprymnus) along the Lukosi River, Hwange National Park, Zimbabwe, Africa

Male common waterbuck (Ellipsen waterbuck) (Kobus ellipsiprymnus ellipsiprymnus), Samburu National Reserve, Kenya, East Africa, Africa

Young male Defassa Waterbuck (Kobus ellipsiprymnus defassa), Masai Mara National Reserve, Kenya, East Africa, Africa

Male waterbuck (Kobus ellipsiprymnus), Khwai Concession, Okavango Delta, Botswana.

Male waterbuck (Kobus ellipsiprymnus), Khwai Concession, Okavango Delta, Botswana.

Male common waterbuck, or Ellipsen waterbuck, (Kobus ellipsiprymnus ellipsiprymnus), Greater Limpopo Transfrontier Park, encompassing the former Kruger National Park, South Africa, Africa

Elephant bull (Loxodenta africana) comes out of river, lifts his head high. In background stand antelopes, Lechwe. Okavango Delta, Botswana, Africa

Red Lechwe (Kobus leche leche), male, running in a freshwater marsh, aerial view, Okavango Delta, Botswana, Africa

Red Lechwe (Kobus leche leche), different aged males, running in a freshwater marsh, aerial view, Okavango Delta, Botswana, Africa

Two male waterbucks (Kobus ellipsiprymnus) in a forest, Motswari Game Reserve, South Africa

Male Defassa waterbuck (Kobus ellipsiprymnus) in grass eyeing camera, Serengeti, Tanzania

Close-up portrait of a male common waterbuck (Kobus ellipsiprymnus) looking at the camera at the Gabus Game Ranch; Otavi, Otjozondjupa, Namibia

African bush elephant (Loxodonta africana) confronts male Common waterbuck (Kobus ellipsiprymnus) in Chobe National Park, Botswana

Male Defassa waterbuck (Kobus ellipsiprymnus) stands on grassy mound, Serengeti, Tanzania

Uganda's Kob (Kobus thomasi), Murchison Falls National park, Uganda

Waterbuck (Kobus ellipsiprymnus), Masai Mara, Kenya.

Uganda Kob (Kobus thomasi), Queen Elizabeth National Park, Uganda

Uganda's Kob (Kobus thomasi), Murchison Falls National park, Uganda