Paul Souders/ Worldfoto / African Elephant (Loxodonta africana) calf feeding, Ngorongoro Conservation Area, Tanzania

Paul Souders/ Worldfoto / Grey Crowned Crane (Balearica regulorum) flying, Ngorongoro Conservation Area, Tanzania

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

Juan Carlos Munoz / Herd of Impala (Aepyceros melampus) silhouetted at sunset, Ngorongoro Conservation Area, Tanzania.

Mike Wilkes / Burchell's zebra (Equus quagga burchellii) walking in single file, Ngorongoro Crater,Tanzania

Mark MacEwen / Lioness (Panthera leo) feeding on carcass, Ngorongoro Crater, Tanzania, Africa.

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 / Masai Giraffes (Giraffa camelopardalis) on open plains browsing Whistling Thorn Acacia (Acacia drepanolobium). Slopes of the Ngorongoro Highlands with the Serengeti Plains beyond, Tanzania. (Digitally...

Nick Garbutt / African Lion (Panthera leo) male in Ngorongoro Crater. Ngorongoro Conservation Area, Tanzania. March 2010. (digitally stitched image)

Mitsuaki Iwago / African Elephant (Loxodonta africana) male feeding, Ngorongoro Crater, Tanzania

Anup Shah / Thomson's gazelle {Gazella thomsonii} chasing off a marauding Golden jackal {Canis aureus} Ngorongoro conservation area, Tanzania

Anup Shah / Golden jackals {Canis aureus} killing young Gazelle, Ngorongoro conservation area, Tanzania