Adri de Visser / African Lion (Panthera leo) female looking at Kob (Kobus kob) calf, Queen Elizabeth National Park, Uganda

Adri de Visser / Zebra (Equus quagga) pair at sunrise, Masai Mara, Kenya

Adri de Visser / Mountain Gorilla (Gorilla gorilla beringei) in rain, Bwindi Impenetrable National Park, Uganda

Adri de Visser / Leopard (Panthera pardus) climbing down tree, Masai Mara, Kenya

Adri de Visser / African Lion (Panthera leo) males greeting each other, Masai Mara, Kenya

Adri de Visser / African Lion (Panthera leo) male flehming, Masai Mara, Kenya

Adri de Visser / Snowy Owl (Nyctea scandiaca) flying, Canada

Adri de Visser / Snowy Owl (Nyctea scandiaca) in snow, Canada

Adri de Visser / African Lion (Panthera leo) female predating Ugandan Kob (Kobus kob thomasi) calf, Queen Elizabeth National Park, Uganda

Adri de Visser / African Lion (Panthera leo) female pawing Kob (Kobus kob) calf, Queen Elizabeth National Park, Uganda

Adri de Visser / Aardvark (Orycteropus afer), Masai Mara, Kenya

Adri de Visser / African Wild Cat (Felis silvestris lybica), Masai Mara, Kenya