Anup Shah / Black-backed jackals (Canis mesomelas) waiting at an African lion (Panthera leo) kill to scavenge. Masai Mara National Reserve, Kenya. March.

LYNN M. STONE / Grizzly bear fishing for salmon with Glaucous winged gulls trying to scavenge, McNeil river, Alaska

SCOTLAND: The Big Picture / Common buzzard, (Buteo buteo) flying in to scavenge on deer carcass, Isle of Skye, Scotland, UK.January

Terry Whittaker / Grey Heron ( Ardea cinerea) at fish market waiting to scavenge scraps of food. Amsterdam, Netherlands. April 2017.

Ashley Cooper / Children gathering fish, left behind by January 2015 flooding, in a hole in damaged bridge near Phalombe. Malawi, March 2015.

Ashley Cooper / Chinese man collects coal that has fallen from lorries taking coal from an open cast coal mine to power plants near Heihe on the Chinese Russian border

Loic Poidevin / Golden jackal (Canis aureus) climbing tree trunk to scavenge fish left by Sea eagle. Hooded crow (Corvus cornix) perched at top. Danube Delta, Romania, May.

Francisco Marquez / Black kites (Milvus migrans) flying over Magala Guddo Market where they scavenge discarded food, Harar, Ethiopia, February 2008.

Francisco Marquez / Black kites (Milvus migrans) flying over Magala Guddo Market where they scavenge discarded food, Harar, Ethiopia, February 2008.

Tui De Roy / Magnificent frigatebird (Fregata magnificens) landing to scavenge on tuna. A group of the sea lion bulls have learnt to herd Pelagic yellowfin tuna into a small cove, trapping them. The fish often lea...

Denis-Huot / Lions (Panthera leo) leaving remains of carcass as Hyena (Crocuta crocuta) arrive to scavenge. With Hooded vulture (Necrosyrtes monachus) and Black backed jackals (Canis mesomelas) Masai-Mara game res...

Nick Upton / Herring gull (Larus argentatus) diving down to scavenge food with rugby ground in the background, Bath, UK, March.

Nick Upton / Lesser black-backed gull (Larus fuscus) perched on a wall overlooking Parade Gardens Park looking out for food scraps to scavenge, Bath, UK, March.

Sylvain Cordier / Grizzly bear (Ursus arctos horribilis), catching a female salmon in the river. With roe flying and gulls trying to scavenge the eggs, Katmai National Park and Preserve, Alaska, USA, February.

Bence Mate / Grey heron (Ardea cinerea) looking on as White tailed eagle (Haliaeetus albicilla) feeding, with Magpies (Pica pica) waiting to scavenge. Hungary.

Bryan and Cherry Alexander / Glaucous gulls (Larus hyperboreus) squabbling whilst waiting for a Polar bear (Ursus maritimus) to leave its kill so they can scavenge, Svalbard, Norway.

Bryan and Cherry Alexander / Herring gulls (Larus argentatus) scavenging for salmon guts on the shore of Anadyr Bay, Anadyr, Chukotka, Siberia, Russia. July 2013.

Nick Upton / Herring gull (Larus argentatus) juvenile standing on car roof in a car park waiting to scavenge food dropped by tourists, Looe, Cornwall, UK, August.

Nick Upton / Herring gull (Larus argentatus) standing on car roof waiting to scavenge food dropped by tourists, Looe, Cornwall, UK, August.

Nick Upton / Herring gull (Larus argentatus) standing on car roof in a car park waiting to scavenge food dropped by tourists, Looe, Cornwall, UK, August.

Eric Medard / Common buzzard (Buteo buteo) eating a dead Copyu / Nutria in winter, with crow coming in to scavenge, France, February

Nick Upton / Wide angle view of Green-leaf worm (Eulalia viridis) emerging from its retreat under Pepper dulse (Osmundea pinnatifida) a red algae to scavenge on rocks encrusted with Common / Northern rock barnacle...

Nick Upton / Wide angle view of Green-leaf worm (Eulalia viridis) emerging from its retreat under Pepper dulse (Osmundea pinnatifida) a red algae to scavenge on rocks encrusted with Common / Northern rock barnacle...

Nick Upton / Wide angle view of Green-leaf worm (Eulalia viridis) emerging from its retreat under Pepper dulse (Osmundea pinnatifida) a red algae to scavenge on rocks encrusted with Common / Northern rock barnacle...

Nick Upton / Wide angle view of Green-leaf worm (Eulalia viridis) emerging from its retreat under Pepper dulse (Osmundea pinnatifida) a red algae to scavenge on rocks encrusted with Common / Northern rock barnacle...

Terry Whittaker / 2020VISION / Urban Red fox (Vulpes vulpes) cub entering litter bin to scavenge food, West London, UK, June

Terry Whittaker / 2020VISION / Urban Red fox (Vulpes vulpes) cub climbing into litter bin to scavenge food, West London, UK, June

Terry Whittaker / 2020VISION / Urban Red fox (Vulpes vulpes) cub climbing into litter bin to scavenge food, West London, UK, June

Terry Whittaker / 2020VISION / Urban Red fox (Vulpes vulpes) cub standing on hind legs before climbing into litter bin to scavenge food, West London, UK, June

Yva Momatiuk & John Eastcott / Dingo (Canis lupus dingo) visiting campground to scavenge for food, Devils Marbles Conservation Reserve, Northern Territory, Australia

Eric Baccega / Polar Bear (Ursus maritimus) feeding on a Narwhal (Monodon monoceros) on icepack as gulls wait to scavenge the carcass. Floe edge, Arctic Bay, Baffin Island, Nunavut, Canada, June.

Eric Baccega / Polar Bear (Ursus maritimus) feeding on a Narwhal (Monodon monoceros) on icepack as gulls wait to scavenge the carcass. Floe edge, Arctic Bay, Baffin Island, Nunavut, Canada, June.

Eric Baccega / Polar Bear (Ursus maritimus) feeding on a Narwhal (Monodon monoceros) on icepack as a gull waits to scavenge the carcass. Floe edge, Arctic Bay, Baffin Island, Nunavut, Canada, June.

Anup Shah / Black-backed jackal (Canis mesomelas) waiting at an African lion (Panthera leo) kill to scavenge. Masai Mara National Reserve, Kenya, March

Anup Shah / Black-backed jackals (Canis mesomelas) approaching African lioness ( Panthera leo) intending to scavenge on the remains of a carcass, Masai Mara National Reserve, Kenya. March.

Steven Kazlowski / Two Arctic foxes (Vulpes / Alopex lagopus) scavenge a Bowhead whale (Balaena mysticetus) (Balaena mysticetus) carcass, one in summer phase of grey and one in winter of white, 1002 area of the Arctic N...

Thomas Marent / Andean Condor (Vultur gryphus) male with American Black Vultures (Coragyps atratus) trying to scavenge carrion, Purace National Park, Colombia

Steven Kazlowski / Polar bear (Ursus maritimus) female with cubs scavenge a Bowhead whale {Balaena mysticetus} carcass, after autumn whaling season, Barter Island, Arctic National Wildlife Refuge, Alaska

Igor Shpilenok / Steller's sea eagle {Haliaeetus pelagicus} feeding on Sockeye salmon prey in snow with crows waiting to scavenge scraps, Kuril Lake, Kamchatka, Far East Russia

Igor Shpilenok / Steller's sea eagles {Haliaeetus pelagicus} gather beside Kuril Lake to feed on Sockeye salmon, crows wait in background to scavenge on scraps, Kamchatka, Far East Russia

Igor Shpilenok / Steller's sea eagle {Haliaeetus pelagicus} adults and juveniles gather on Kuril Lake to feed on Sockeye salmon prey, crows and magpie wait to scavenge for scraps, Kamchatka, Far East Russia

Igor Shpilenok / Group of Steller's sea eagles {Haliaeetus pelagicus} gather to feed on Sockeye salmon prey, crows wait to scavenge on scraps, Kuril Lake, Kamchatka, Far East Russia

Suzi Eszterhas / Wildebeest {Connochaetes taurinus} on migration crossing the Mara River, Marabou storks waiting to scavenge, Maaai Mara Reserve, Kenya

Doug Perrine / Bar jack, dark phase {Caranx ruber} follows Stingray (Hypanus americanus) to scavenge food, Cayman Is,

Anup Shah / Marabou stork {Leptoptilos crumeniferus} attacking Tawny eagle {Aquila Rapax} to scavenge Lesser flamingo carcass, Lake Nakuru, Kenya.

Michio Hoshino / Grizzly Bear (Ursus arctos horribilis) feeding on salmon with gulls waiting to scavenge fish remains, Alaska

Mitsuaki Iwago / Spotted Hyena (Crocuta crocuta) feeding on Flamingo (Phoenicopterus sp) while Black-backed Jackals (Canis mesomelas) attempt to scavenge, Ngorongoro Crater, Tanzania

Tui De Roy / Magnificent Frigatebird (Fregata magnificens) flock swooping low to scavenge fish scraps, Academy Bay, Santa Cruz Island, Galapagos Islands, Ecuador

Sumio Harada / Coyote (Canis latrans) and Common Raven (Corvus corax) group and Magpies scavenge an elk carcass, Yellowstone National Park, Wyoming

Jeff Rotman / Common shore crabs {Carcinus maenas} + Jonah crabs {Cancer borealis} scavenge

Doug Allan / Black browed albatross (Thalassarche melanophrys) and Giant petrel {Macronectes giganteus} scavenge dead whale, Antarctica

Richard Herrmann / California Sea Lion (Zalophus californianus) bull predating juvenile Ocean Sunfish (Mola mola) with gull looking to scavenge, Monterey Bay, California

Yva Momatiuk & John Eastcott / Dingo (Canis lupus dingo) visiting campground to scavenge for food, Devils Marbles Conservation Reserve, Northern Territory, Australia

Shin Yoshino / Grizzly Bear (Ursus arctos horribilis) mother and cubs fishing in shallow river as gulls scavenge scraps, Alaska

Mitsuaki Iwago / African Lion (Panthera leo) feeding while Spotted Hyenas (Crocuta crocuta) attempt to scavenge, Serengeti National Park, Tanzania

Tui De Roy / Aerial view of female Olive ridley turtle (Lepidochelys olivacea) departing beach after nesting during massive arribada, with Black vultures (Coragyps atratus) looking out for opportunities to scaveng...

John Chan / Osprey (Pandion haliaetus) feeding on a mullet fish as Western gulls (Larus occidentalis) approach waiting to scavenge scraps, Bolsa Chica Ecological Reserve, Southern California, USA, September.

Nick Garbutt / Ruppell's griffon vulture (Gyps rueppelli) in flight, coming in to land to scavenge on carcass. Serengeti National Park, Tanzania.

Ingo Arndt / Larder beetle larva (Dermestes lardarius) inside a Honey bee (Apis mellifera) tree bee hive, Poland. These beetles and their larvae scavenge on dead bees.

Tui De Roy / Aerial view of Galapagos sea lion group (Zalophus wollebaeki) swimming with Brown pelicans (Pelecanus occidentalis) followng them to hunt and scavenge. Bainbrdige Crater, near Santiago Island, Galapag...