Winfried Wisniewski / Hippopotamus (Hippopotamus amphibius) in territorial display, Mkhuze Game Reserve, KwaZulu-Natal, South Africa

Winfried Wisniewski / Tawny Eagle (Aquila rapax) flying, KwaZulu-Natal, South Africa

Winfried Wisniewski / Warthog (Phacochoerus africanus) drinking at waterhole, KwaZulu-Natal, South Africa

Winfried Wisniewski / Cape Buffalo (Syncerus caffer) drinking at waterhole at night, KwaZulu-Natal, South Africa

Juergen & Christine Sohns / Meerkat (Suricata suricatta) trio on guard, Oudtshoorn, South Africa

Juergen & Christine Sohns / Meerkat (Suricata suricatta) on guard, Oudtshoorn, South Africa

Juergen & Christine Sohns / Black-footed Penguin (Spheniscus demersus) pair on beach, Betty's Bay, Stony Point Nature Reserve, South Africa

Sebastian Kennerknecht / African Elephant (Loxodonta africana) bulls fighting, Kruger National Park, South Africa

Sebastian Kennerknecht / Leopard (Panthera pardus) female feeding on sub-adult male Impala (Aepyceros melampus) prey in tree, Greater Makalali Private Game Reserve, South Africa

Richard Du Toit / Black Rhinoceros (Diceros bicornis) female grazing, Mountain Zebra National Park, South Africa

Richard Du Toit / Cape White-eye (Zosterops capensis) on Cape Honeysuckle (Tecomaria capensis), Garden Route National Park, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) trio nuzzling, Itala Game Reserve, South Africa

Pete Oxford / Puff Adder (Bitis arietans) near wetland, Marakele National Park, Limpopo, South Africa

Richard Du Toit / Northern Giraffe (Giraffa camelopardalis) mother and calf, iSimangaliso Wetland Park, South Africa

Eric Sohn Joo Tan/ BIA / Black-winged Lapwing (Vanellus melanopterus) calling during defensive display, KwaZulu-Natal, South Africa

Richard Du Toit / Black Wildebeest (Connochaetes gnou), Rietvlei Nature Reserve, South Africa

Pete Oxford / White Rhinoceros (Ceratotherium simum) mother and calf with Red-billed Oxpeckers (Buphagus erythrorhynchus), South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) pair nuzzling, Rietvlei Nature Reserve, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) females nuzzling, Rietvlei Nature Reserve, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) mother and foal, Rietvlei Nature Reserve, South Africa

Richard Du Toit / African Lion (Panthera leo) males greeting, Kgalagadi Transfrontier Park, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) parents tending to foal, Rietvlei Nature Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus) carrying Bontebok (Damaliscus pygargus) calf prey, Londolozi, Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus) mother licking cub, Londolozi, Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus), Londolozi, Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus) drinking at night, Londolozi, Sabi-sands Game Reserve, South Africa

Richard Du Toit / Red-billed Oxpecker (Buphagus erythrorhynchus) landing on South African Giraffe (Giraffa giraffa giraffa), KwaZulu-Natal, South Africa

Richard Du Toit / South African Giraffe (Giraffa giraffa giraffa) pair courting, KwaZulu-Natal, South Africa

Richard Du Toit / Red-billed Oxpecker (Buphagus erythrorhynchus) group on Warthog (Phacochoerus africanus), Kruger National Park, South Africa

Richard Du Toit / White Rhinoceros (Ceratotherium simum) covered with mud, Kruger National Park, South Africa

Richard Du Toit / Red-billed Oxpecker (Buphagus erythrorhynchus) group on White Rhinoceros (Ceratotherium simum), Kruger National Park, South Africa

Richard Du Toit / Red-billed Oxpecker (Buphagus erythrorhynchus) group on White Rhinoceros (Ceratotherium simum), Kruger National Park, South Africa

Richard Du Toit / Mountain Zebra (Equus zebra) trio in savanna, Mountain Zebra National Park, South Africa

Richard Du Toit / African Elephant (Loxodonta africana) bulls drinking, Shingwedzi River, Kruger National Park, South Africa

Richard Du Toit / Impala (Aepyceros melampus) male with Red-billed Oxpecker (Buphagus erythrorhynchus) pair, Kruger National Park, South Africa

Richard Du Toit / African Lion (Panthera leo) male in thick bush, Kruger National Park, South Africa

Richard Du Toit / Ostrich (Struthio camelus) male in threat display, Rietvlei Nature Reserve, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) mother and foal in tall grass, Rietvlei Nature Reserve, South Africa

Heini Wehrle / Red-billed Oxpecker (Buphagus erythrorhynchus) pair searching for parasites on Impala, Mpumalanga, South Africa

Sergey Gorshkov / Impala (Aepyceros melampus) herd running, Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus), Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Red-billed Oxpecker (Buphagus erythrorhynchus) trio on White Rhinoceros (Ceratotherium simum), Sabi-sands Game Reserve, South Africa

Sergey Gorshkov / Leopard (Panthera pardus), Sabi-sands Game Reserve, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) stallions fighting, Rietvlei Nature Reserve, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) stallions fighting, Rietvlei Nature Reserve, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) mother nuzzling foal, Rietvlei Nature Reserve, South Africa

Richard Du Toit / White Rhinoceros (Ceratotherium simum) mother and calf with Cattle Egret (Bubulcus ibis), Rietvlei Nature Reserve, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) reacting to parasitic Bot Fly (Oestridae) trying to lay eggs on it, KwaZulu-Natal, South Africa

Richard Du Toit / Blue Wildebeest (Connochaetes taurinus) males sparring, Kgalagadi Transfrontier Park, South Africa

Richard Du Toit / Long-tailed Widow (Euplectes progne) male in display flight, Rietvlei Nature Reserve, South Africa

Pete Oxford / Long-beaked Common Dolphin (Delphinus capensis) pod and diving Cape Gannets (Morus capensis) hunting Pacific Sardines (Sardinops sagax), Eastern Cape, South Africa

Kevin Schafer / Black-footed Penguin (Spheniscus demersus) group walking near huge stones, Boulders Beach, Cape Peninsula, South Africa

Kevin Schafer / Southern Double-collared Sunbird (Cinnyris chalybeus) male on Pincushion (Leucospermum sp) protea flower, Kirstenbosch Garden, Cape Town, South Africa

Cyril Ruoso / Chacma Baboon (Papio ursinus) stealing rhubarb from shopper, Cape Town, South Africa. Sequence 2 of 6

Martin Willis / Southern Double-collared Sunbird (Cinnyris chalybeus) on Rocket Pincushion (Leucospermum reflexum) flower, Kirstenbosch Garden, Cape Town, South Africa

Martin Willis / Impala (Aepyceros melampus) male with large antlers peering through woodland, Saint Lucia, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) pair nuzzling, Rietvlei Nature Reserve, Gauteng, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) yawning, Rietvlei Nature Reserve, Gauteng, South Africa

Richard Du Toit / Cattle Egret (Bubulcus ibis) on Burchell's Zebra (Equus burchellii), Rietvlei Nature Reserve, Gauteng, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) pair, Rietvlei Nature Reserve, Gauteng, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) males fighting, Rietvlei Nature Reserve, Gauteng, South Africa

Piotr Naskrecki / Mantid (Hemiempusa capensis), Western Cape, South Africa

Richard Du Toit / Springbok (Antidorcas marsupialis) group running, Kalahari, Northern Cape, South Africa

Richard Du Toit / Long-tailed Widow (Euplectes progne) male in breeding plumage, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) flehming, Kwazulu Natal, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) mother and foal, Kwazulu Natal, South Africa

Richard Du Toit / Blue Wildebeest (Connochaetes taurinus) female running, Kalahari, South Africa

Luciano Candisani / African Lion (Panthera leo) adult male, Sanbona Wildlife Reserve, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) males sparring, Itala Game Reserve, South Africa

Piotr Naskrecki / Katydid (Hetrodes pupus) on succulent, Cederberg, Western Cape, South Africa

Piotr Naskrecki / Grasshopper, newly discovered species, from fynbos habitat, Jonaskop, Western Cape, South Africa

Piotr Naskrecki / Grasshopper with aposematic coloration aerates toxic blood as a defensive behavior, Kwazulu Natal, South Africa

Piotr Naskrecki / Grasshopper with aposematic coloration, Maloti Mountains, Lesotho, South Africa

Mitsuaki Iwago / Bat-eared Fox (Otocyon megalotis) mother and pups, Africa

Ingo Arndt / Emperor Scorpion (Pandinus imperator) photographed under ultraviolet light, Africa

Gerry Ellis / Ostrich (Struthio camelus) group in large commercial farm near Kkruldfontein, western South Africa

Mark Moffett / African Praying Mantis (Sphodromantis lineola) female, Africa

Richard Du Toit / African Lion (Panthera leo) adult male roaring at night, Sabi Sands Private Game Reserve, South Africa

Gerry Ellis / Ostrich (Struthio camelus) females in large commercial farm, near Kruldfontein, western South Africa

Jim Brandenburg / Nile Crocodile (Crocodylus niloticus) mouth defense displaying, South Africa

Konrad Wothe / Hippopotamus (Hippopotamus amphibius) grazing, Africa

Jim Brandenburg / Black Rhinoceros (Diceros bicornis) portrait, South Africa

Mark Moffett / Weaver Ant (Oecophylla longinoda) group building nest by pulling on leaves and forming chains, Africa

Jim Brandenburg / Burchell's Zebra (Equus burchellii) portrait, Africa

Piotr Naskrecki / Scorpion (Opisthacanthus pugnax) in defensive posture, South Africa

Piotr Naskrecki / Green Milkweed Locust (Phymateus viridipes) in defensive posture, Mpumalanga, South Africa

Winfried Wisniewski / Black-backed Jackal (Canis mesomelas) drinking at waterhole, Kgalagadi Transfrontier Park, South Africa

Winfried Wisniewski / Brown Hyena (Hyaena brunnea) drinking at waterhole, Kgalagadi Transfrontier Park, South Africa

Winfried Wisniewski / Brown Hyena (Hyaena brunnea), Kgalagadi Transfrontier Park, South Africa

Winfried Wisniewski / Striated Heron (Butorides striata) foraging, KwaZulu-Natal, South Africa

Winfried Wisniewski / Burchell's Zebra (Equus burchellii) pair nuzzling, Mkhuze Game Reserve, KwaZulu-Natal, South Africa

Winfried Wisniewski / African Fish Eagle (Haliaeetus vocifer), Mkhuze Game Reserve, KwaZulu-Natal, South Africa

Winfried Wisniewski / South African Giraffe (Giraffa giraffa giraffa) yawning, Itala Game Reserve, South Africa

Winfried Wisniewski / Hippopotamus (Hippopotamus amphibius), Mkhuze Game Reserve, KwaZulu-Natal, South Africa

Winfried Wisniewski / Hippopotamus (Hippopotamus amphibius) in territorial display, Mkhuze Game Reserve, KwaZulu-Natal, South Africa

Juergen & Christine Sohns / Minden / Black-footed Penguin (Spheniscus demersus), Boulders Beach, Simonstown, South Africa