Sandesh Kadur / Blue wildebeest (Connochaetes taurinus) crossing a river, Serengeti National Park, Tanzania.

Frederique Olivier / Young Burchell's zebra (Equus burchellii) playing, biting and kicking its mother, Serengeti NP, Tanzania.

Will Burrard-Lucas / Lion (Panthera leo) walking over the plain, taken with remote camera. Serengeti National Park, Tanzania. December

Thomas Marent / African Elephant (Loxodonta africana) crossing dirt road near tourists, Serengeti National Park, Tanzania

Andy Rouse,Andy Rouse / African Elephant (Loxodonta africana) breeding herd led by matriarch. Maasai Mara, Kenya, Africa, August.

Andy Rouse,Andy Rouse / African Elephant (Loxodonta africana) breeding herd in rainstorm during migration. Maasai Mara, Kenya, Africa, August.

Andy Rouse / African Elephant (Loxodonta africana) silhoutted against setting sun. Maasai Mara, Kenya, Africa, August.

Charlie Summers / Stars draw traces above Naabi Hill acacia trees, Serengeti National Park, Tanzania

Charlie Summers / Plains Zebra (Equus quagga) in a dominance fight with dust flying, Lake Magadi, Serengeti, Tanzania.

Charlie Summers / Maasai Giraffe (Giraffa camelopardalis) feeding on Acacia tree, Serengeti, 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...