Wim van den Heever / Lions (Panthera leo) five drinking together, Ndutu, Tanzania

Hermann Brehm / Crowned crane (Balearica regulorum) with chicks, Ndutu, Tanzania.

Hermann Brehm / Crowned crane (Balearica regulorum) with chicks, Ndutu, Tanzania.

Nick Garbutt / Acacia sp. at night, with a herd of Plains Zebra (Equus quagga) beneath. Near Ndutu, Nogorongoro Conservation Area, Serengeti National Park, Tanzania.

Nick Garbutt / Herd of White-bearded Wildebeest (Connochaetes taurinus albojubatus) with calves in Long Gully near Ndutu on their annual migration. Ngorongoro Conservation Area, Serengeti Ecosystem, Tanzania. (Digit...

Nick Garbutt / Male African Lion (Panthera leo) playing with 4 month cub. Big Marsh, near Ndutu, Nogorongoro Conservation Area, Serengeti National Park, Tanzania.

Mary McDonald / Flock of Cattle Egrets (Bubulcus ibis) in roosting trees at dusk, Imba Ndutu, Serengeti NP, Tanzania, East Africa.

Melvin Grey / Chestnut-bellied sandgrouse (Pterocles exustus olivascens) male. Ndutu, Tanzania.

Melvin Grey / Cheetah (Acinonyx jubatus) female and cubs. Ndutu, Tanzania.

Melvin Grey / Yellow-throated sandgrouse (Pterocles gutturalis saturatior) male. Ndutu, Tanzania. Medium repro only.

Karine Aigner / African elephant (Loxodonta africana) bull spraying mud over himself. Ndutu area, Serengeti National Park, Tanzania.

Karine Aigner / African elephant (Loxodonta africana) male surveys the scene before drinking water. Ndutu area, Serengeti National Park, Tanzania