Flip Nicklin / Bull Shark (Carcharhinus leucas), North America

Pete Oxford / African elephant by Zambezi river {Loxodonta africana} Zimbabwe

Pete Oxford / African elephant by the Zambezi River, Zimbabwe. Africa.

Tony Heald / Sunset over Zambezi River, Mana Pools National Park, Zimbabwe, October 2012

Tony Heald / African Elephant (Loxodonta africana) portrait in Zambezi River, Mana Pools National Park, Zimbabwe October 2012

Tony Heald / African Elephant (Loxodonta africana) getting out of Zambezi River, Mana Pools National Park, Zimbabwe, October 2012

Tony Heald / African Elephant (Loxodonta africana) in Zambezi River, Mana Pools National Park, Zimbabwe, October 2012

Tony Heald / African Elephant (Loxodonta africana) in Zambezi River, Mana Pools National Park, Zimbabwe, October 2012

Tony Heald / African Elephant (Loxodonta africana) in Zambezi River, Mana Pools National Park, Zimbabwe, October 2012

Tony Heald / African Elephant (Loxodonta africana) in Zambezi River, Mana Pools National Park, Zimbabwe, October 2012

Piper Mackay / African elephant (Loxodonta africana) swimming across the Zambezi River, Chobe NP, Botswana

Piper Mackay / Two African elephants (Loxodonta africana) playing in the Zambezi River, Chobe NP, Botswana

Fred Bavendam / Grey Reef Shark (Carcharhinus amblyrhynchos) dead after its fins were cut off for shark fin soup, Thailand

Fred Bavendam / Grey Reef Shark (Carcharhinus amblyrhynchos) dead after becoming entangled in fishing net, Thailand

Pete Oxford / Game viewing on the Zambezi river, Zimbabwe, Africa

Pete Oxford / Tourists in canoes, Zambezi river, Zimbabwe.

Tony Heald / Tourists in canoe going down Zambezi River, Mana Pools NP, Zimbabwe

Jose B. Ruiz / Victoria falls NP. Zambezi river, Zambia.

Norbert Wu / Bull Shark (Carcharhinus leucas) teeth, Florida

Norbert Wu / Bull Shark (Carcharhinus leucas) teeth, Florida

Flip Nicklin / Bull Shark (Carcharhinus leucas) underwater portrait, North America

Jose B. Ruiz / Knife Edge Point, Victoria Falls, Zambezi River. Victoria Falls NP Zambia

Jose B. Ruiz / Knife Edge Point, Victoria Falls NP, Zambezi River, Africa

Pete Oxford / Zambezi River, Zimbabwe.

Rick Tomlinson / Kariba Dam, Zimbabwe is located approximately halfway down the Zambezi River. The dam was surrounded by controversy, both environmentally and socially, it is an impressive monument to man's engineerin...

Piotr Naskrecki / Victoria Falls, Zambezi River, Zambia

Piotr Naskrecki / Victoria Falls, Zambezi River, Zambia

Flip Nicklin / Bull Shark (Carcharhinus leucas) underwater portrait, North America

Pete Oxford / African elephants by Zambezi river {Loxodonta africana} Chikwenya Mana Pools Zimbabwe