Ann & Steve Toon / Water monitor (leguaan) (Varanus niloticus), Zimanga private game reserve, KwaZulu-Natal, South Africa, September

Sandesh Kadur / Nile monitor lizard (Varanus niloticus). Lake Manyara National Park, Tanzania.

Bernard Castelein / Nile monitor (Varanus niloticus), Gambia.

Bernard Castelein / Nile monitor (Varanus niloticus), Gambia.

Ann & Steve Toon / Juvenile Nile monitor (Varanus niloticus), resting on tree trunk, Chobe River, Chobe National Park, Botswana, Africa, September.

Naskrecki & Guyton / Marabou storks (Leptoptilos crumenifer) hunting Sharpooth catfish (Clarias gariepinus) in the dried up Mussicadzi River. In the background a bushbuck (Tragelaphus sylvaticus) drinks at another small...

Naskrecki & Guyton / Nile monitor lizards (Varanus niloticus) converging on last remaining puddle of water in the Mussicadzi River to hunt Sharpooth catfish (Clarias gariepinus). Baboons (Papio sp.) and a busbuck (Tragela...

Naskrecki & Guyton / Nile monitor lizards (Varanus niloticus) converging on last remaining puddle of water in the Mussicadzi River to hunt Sharpooth catfish (Clarias gariepinus). Baboons (Papio sp.), a warthog (Phacochoer...

Naskrecki & Guyton / Nile monitor lizards (Varanus niloticus) hunting giant Sharpooth catfish (Clarias gariepinus) in dried up puddle of the Mussicadzi River, Gorongosa National Park, Mozambique.

Eric Baccega / Nile monitor lizard (Varanus niloticus) resting in tree, Moremi National Park, Okavango Delta, Botswana, Southern Africa

Ann & Steve Toon / Water monitor (Varanus niloticus), Zimanga Private Game Reserve, KwaZulu-Natal, South Africa, June

Loic Poidevin / Nile monitor (Varanus niloticus) portrait, Lake Baringo, Kenya, October.