Anup Shah / Vervet monkey (Cercopithecus aethiops) male scratching itself - remote camera . Masai Mara National Reserve, Kenya.

Neil Aldridge / Vervet monkey (Chlorocebus pygerythrus) yawning while sitting on a fallen tree in forests, Limpopo River, Kruger National Park, South Africa.

Wim van den Heever / Vervet Monkey (Chlorocebus pygerythrus) baby jumping between branches, photographed mid air. Okavango Delta Botswana.

Anup Shah / Baby Vervet monkey portrait (Chlorocebus / Cercopithecus aethiops) Samburu NR, Kenya

Anup Shah / Playful Vervet monkey in tree (Chlorocebus / Cercopithecus aethiops) Samburu NR, Kenya

Chase Dekker / Vervet Monkey (Chlorocebus pygerythrus) mother and young, Amboseli National Park, Kenya

Chase Dekker / Vervet Monkey (Chlorocebus pygerythrus) mother and young, Amboseli National Park, Kenya

Tony Heald / Vervet monkey (Cercopithecus aethiops) eating, Kruger National Park South Africa.

Richard Du Toit / Savanah Monkey (Chlorocebus aethiops) balancing on barbed wire, Umlalazi Nature Reserve, KwaZulu-Natal, South Africa

Eric Baccega / Vervet monkey (Cercopithecus aethiops) foraging for seeds to eat in elephant dung, South Luangwa National Park, Zambia

Ann & Steve Toon / Vervet monkeys (Chlorocebus pygerythrus) Zimanga Game Reserve, KwaZulu-Natal, South Africa.

Bernard Castelein / Green monkey (Chlorocebus sabaeus) family group sitting in tree, Gambia.