Eric Baccega / Coalition of two African male lions (Panthera leo) resting on the banks of the Luangwa river, dry season, South Luangwa National Park, Zambia

Eric Baccega / Lioness (Panthera leo), aggressively rebuffing male lion banks of the Luangwa river, South Luangwa National Park, Zambia

Nick Garbutt / Adult bull African Elephant (Loxononta africana) trunk reaching up to feed on foliage on the banks of the Luangwa River, South Luangwa National Park, Zambia, October

Nick Garbutt / Adult bull African Elephant (Loxononta africana) reaching up to feed on foliage on the banks of the Luangwa River, South Luangwa National Park, Zambia, October

Nick Garbutt / Adult male Hippopotamus (Hippopotamus amphibius) posturing in agressive 'yawn' behaviour, Luangwa River, South Luangwa National Park, Zambia, November

Nick Garbutt / Adult male Hippopotamuses (Hippopotamus amphibius) posturing in aggressive 'yawn' behaviour, Luangwa River, South Luangwa National Park, Zambia, November. Digital composite (two frames stitched togeth...

Nick Garbutt / Adult bull African Elephant (Loxononta africana) reaching up to feed on foliage on the banks of the Luangwa River, South Luangwa National Park, Zambia, October

Andy Rouse / African elephant (Loxodonta africana) breeding herd crossing river at sunset, South Luangwa, Zambia (non-ex)

TJ Rich / Hippopotamus in Luangwa river at sunrise, South Luangwa National Park, Zambia

Martha Holmes / Group of Hippopotamuses in river (Hippopotamus amphibius) Luangwa River, Zambia, Africa.

Martha Holmes / Hippopotamus yawning, mouth open (Hippopotamus amphibius) Luangwa River, Zambia

Martha Holmes / Cape buffalo {Syncerus caffer caffer} large herd drinking in Luangwa river, Zambia.

Eric Baccega / Exposed roots of a sausage tree (Kigelia pinnata) and eroded banks of Luangwa river at dry season, South Luangwa National Park, Zambia

Eric Baccega / Exposed roots of a sausage tree (Kigelia pinnata) and eroded banks of Luangwa river at dry season, South Luangwa National Park, Zambia

Eric Baccega / Hippo (Hippopotamus amphibius) female and very young calf on the bank of the Luangwa river, South Luangwa National Park, Zambia

Eric Baccega / Hippopotamus (Hippopotamus amphibius) at water surface, Luangwa river at sunset South Luangwa National Park, Zambia

Eric Baccega / Hippopotamus (Hippopotamus amphibius) at water surface, Luangwa river at sunset South Luangwa National Park, Zambia

Eric Baccega / African elephant (Loxodonta africana) walking through Kafunta Lodge main area to feed on wild mango fruit, South Luangwa National Park, Zambia

Kristel Richard / Thornicroft giraffes (Giraffa camelopardalis thornicrofti) alert beside the Luangwa river with hippopotamuses (Hippopotamus amphibius) South Luangwa National Park, Zambia. August

Will Burrard-Lucas / Southern carmine bee-eater (Merops nubicoides) flock flying from river cliff. South Luangwa, Zambia. October

Will Burrard-Lucas / Luangwa River, North Luangwa National Park, Zambia. June 2013.

Will Burrard-Lucas / River Luangwa at sunset, South Luangwa National Park, Zambia. April 2013.

Will Burrard-Lucas / Flooded ebony grove, South Luangwa National Park, Zambia. March 2013

Will Burrard-Lucas / African Elephant (Loxodonta africana) walking by Luangwa River, South Luangwa National Park, Zambia. February.

Will Burrard-Lucas / African Elephants (Loxodonta africana) crossing a shallow river, South Luangwa National Park, Zambia. February.

Will Burrard-Lucas / Nile crocodile (Crocodylus niloticus) entering the Luangwa River, South Luangwa National Park, Zambia. January.

Will Burrard-Lucas / Malachite kingfisher (Alcedo cristata) on the banks of the Luangwa River, South Luangwa National Park, Zambia. January.

Will Burrard-Lucas / Newborn baby hippopotamus (Hippopotamus amphibius) sitting at a riverbank, South Luangwa. January.

Will Burrard-Lucas / Hippopotamus (Hippopotamus amphibius) female charging in water. This female had a newborn calf on the riverbank, South Luangwa National Park, Zambia. January.

Will Burrard-Lucas / Hippopotamus (Hippopotamus amphibius) mother standing between her newborn baby and a Nile crocodile (Crocodylus niloticus) on a riverbank, South Luangwa National Park, Zambia. January.

Will Burrard-Lucas / Leopard (Panthera pardus) standing at riverbank, South Luangwa National Park, Zambia. January.

Will Burrard-Lucas / Nile crocodile (Crocodylus niloticus) climbing down a steep river bank to the water,South Luangwa National Park, Zambia. January.

Will Burrard-Lucas / African elephant (Loxodonta africana) herd crossing Luangwa River at dusk, South Luangwa National Park, Zambia. December.

Will Burrard-Lucas / Malachite kingfisher (Alcedo cristata) with insect prey in its beak. These kingfishers eat insects rather than fish, South Luangwa National Park, Zambia. December.

Winfried Wisniewski / Yellow-billed Stork (Mycteria ibis) foraging in shallow water, Luangwa River, South Lungwa National Park, Zambia

Sue Flood / Carmine bee-eaters (Merops nubicus) nesting site in river bank, South Luangwa valley, Zambia September

Sue Flood / Carmine bee-eaters (Merops nubicus) at nesting site in river bank in South Luangwa valley, Zambia September

Sue Flood / Carmine bee-eaters (Merops nubicus) next to nest holes in river bank in South Luangwa valley, Zambia September

Sue Flood / Carmine bee-eaters (Merops nubicus) next to nest holes in river bank in South Luangwa valley, Zambia September

Nick Garbutt / Bachelor herd of bull African Elephants (Loxononta africana) crossing the Luangwa River. South Luangwa National Park, Zambia. Digital composite.

Nick Garbutt / Bachelor herd of bull African Elephants (Loxononta africana) crossing the Luangwa River. South Luangwa National Park, Zambia. Digital composite.

Nick Garbutt / Male Puku (Kobus vardonii). Luangwa River, South Luangwa National Park, Zambia.

Nick Garbutt / Adult Painted Hunting Dogs / African Wild Dogs (Lycaon pictus). Near the Luangwa River, South Luangwa National Park, Zambia.

Nick Garbutt / Adult Painted Hunting Dogs / African Wild Dogs (Lycaon pictus). Near the Luangwa River, South Luangwa National Park, Zambia.

Nick Garbutt / Flock of Southern carmine bee-eaters (Merops nubicoides) in flight from the banks of the Luangwa River, South Luangwa National Park, Zambia, October

Nick Garbutt / Crawshay's zebra (Equus quagga crawshayi), subspecies of Plains Zebra, on the banks of the Luangwa River, South Luangwa National Park, Zambia, October

Nick Garbutt / Verreaux's / Giant eagle-owl (Bubo lacteus) with full moon in the background, hunting along the banks of the Luangwa River, South Luangwa National Park, Zambia, October

Nick Garbutt / Southern Carmine bee-eaters (Merops nubicoides) near nest holes on the banks of the Luangwa River, South Luangwa National Park, Zambia, October

Nick Garbutt / Adult male African lion (Panthera leo) walking along the banks of the Luangwa River, South Luangwa National Park, Zambia, November

Nick Garbutt / Adult Painted hunting dog / African wild dog (Lycaon pictus) on the banks of the Luangwa River, South Luangwa National Park, Zambia, October

Nick Garbutt / Southern Carmine bee-eater (Merops nubicoides) returning to nest hole in river bank, Luangwa River, South Luangwa National Park, Zambia, October

Nick Garbutt / Southern Carmine bee-eater (Merops nubicoides) returning to nest hole in river bank, Luangwa River, South Luangwa National Park, Zambia, October

Andy Rouse / Hippopotamus (Hippopotamus amphibius) pod in river at sunrise, South Luangwa NP, Zambia (non-ex)

Andy Rouse / Hippopotamus (Hippopotamus amphibius) on path back to river at dawn with birds on it, South Luangwa NP, Zambia

Andy Rouse / African elephant (Loxidonta africana) feeding on banks of river, South Luangwa, Zambia (non-ex)

TJ Rich / African lion {Panthera leo} pride on the move in dried river bed, South Luangwa NP, Zambia

TJ Rich / African lion {Panthera leo} lioness on the move in dried river bed, South Luangwa NP, Zambia

TJ Rich / African lion {Panthera leo} pride on the move in dried river bed, South Luangwa NP, Zambia

TJ Rich / African lion {Panthera leo} juvenile on the move in dried river bed, South Luangwa NP, Zambia

TJ Rich / African Elephant crossing dried river bed (Loxodonta africana) South Luangwa NP, Zambia

TJ Rich / Sunset over the Luangwa river, South Luangwa National park, Zambia

TJ Rich / Hippopotamuses in Luangwa river at sunrise, South Luangwa National Park, Zambia

TJ Rich / African elephant youngsters playing in dried river bed (Loxodonta africana) South Luangwa NP, Zambia

TJ Rich / Young Hippopotamus playing in river (Hippopotamus amphibius) South Luangwa NP, Zambia

GEORGETTE DOUWMA / Group of Hippopotamuses in river. {Hippopotamus amphibius} Luangwa Falls, Luangwa river, Zambia.

Martha Holmes / Group of Hippos in river {Hippopotamus amphibius} Luangwa river, Zambia.

Martha Holmes / Crocodiles feeding on dead Hippo {Hippopotamus amphibius} Luangwa River, Zambia.

Martha Holmes / Hippopotamus wading through water (Hippopotamus amphibius) Luangwa River, Zambia

Martha Holmes / Luangwa River in the dry season. Zambia

Winfried Wisniewski / Puku (Kobus vardonii) male on banks of Luangwa River, South Lungwa National Park, Zambia

Martha Holmes / Submerged Hippos at dusk. {Hippopotamus amphibus} South Luangwa River Zambia

Bret Charman / African wild dog (Lycaon pictus) dragging a dead Impala (Aepyceros melampus) from a shallow pool at the edge of the Luangwa River, South Luangwa National Park, Zambia.

Bret Charman / African wild dog (Lycaon pictus) standing on banks of the Luangwa River, South Luangwa National Park, Zambia.

Nick Garbutt / Adult male lion (Panthera leo) standing on the banks of the Luangwa River, South Lunangwa NP. Zambia.