Ismaele Tortella / Three Rock ptarmigan (Lagopus muta) feeding in winter plumage, city of Tromso in the background, northern Norway, March 2019.

Ismaele Tortella / Svalbard reindeer (Rangifer tarandus platyrhynchus) feeding in snow, Svalbard, Norway, March.

Ismaele Tortella / Reindeer (Rangifer tarandus), Kvaloya island, Tromso, Norway, November.

Morley Read / Slow motion clip of a large group of Butterflies (Pieridae) taking flight after puddling, absorbing nutrients or minerals from damp soil, Orellana Province, Amazon rainforest, Ecuador.

Morley Read / Large group of Butterflies (Pieridae) taking flight after puddling, absorbing nutrients or minerals from damp soil, Orellana Province, Amazon rainforest, Ecuador.

Morley Read / Slow motion clip of a Mute swan (Cygnus olor) with three cygnets, Cornwall, England, UK, May.

Morley Read / Slow motion clip of a male Orchid bee (Euglossini) gathering nectar from an orchid (Lycomormium ecuadorense) flower, Imbabura Province, Ecuador.

Morley Read / Aerial shot of a group of wild ponies (Equus caballus) in paramo landscape at the base of Cotopaxi Volcano, Ecuadorian Andes, 2018.

Chase Dekker / Humpback Whale (Megaptera novaeangliae) pod gulp feeding on Northern Anchovy (Engraulis mordax), Monterey Bay, California

Jami Tarris / Caribou (Rangifer tarandus) entering teepee for food, Khovsgol, Mongolia

Fiona Rogers / Eastern Chimpanzee (Pan troglodytes schweinfurthii) seven year old juvenile male, named Siri, feeding on vines, Gombe National Park, Tanzania

Doug Gimesy / Baby Koala (Phascolarctos cinereus) named 'Micky' - one of six evacuated from the Mallacoota wildlife triage centre to Melbourne for further treatment to burns resulting from the Mallacoota bushfires...

Eric Baccega / Young Eastern White-bearded Wildebeest suckling mother (Connochaetes taurinus) Masai Mara National Reserve, Kenya.

Eric Baccega / Lion male (Panthera leo) carrying carcass of a dead wildebeest calf (Connochaetes taurinus). Masai Mara National Reserve, Kenya.

Eric Baccega / Lion male (Panthera leo) carrying carcass of a dead wildebeest calf (Connochaetes taurinus). Masai Mara National Reserve, Kenya.

Eric Baccega / Spotted hyena (Crocuta crocuta) covered in blood and mud after feeding on a kill of Eastern White-bearded Wildebeest (Connochaetes taurinus) Masai Mara National Reserve, Kenya.

Eric Baccega / Spotted hyena (Crocuta crocuta) killing a young Eastern White-bearded Wildebeest (Connochaetes taurinus) Masai Mara National Reserve, Kenya.

Ismaele Tortella / Basking shark (Cetorhinus maximus) feeding, Norway, August.

Ismaele Tortella / Rock ptarmigan (Lagopus muta) feeding in winter plumage, city of Tromso in the background, northern Norway, March 2019.

Morley Read / Brown-banded water snake (Helicops angulatus) swallowing a Basin treefrog (Boana lanciformis) in a pool full of tadpoles in rainforest, Orellana Province, Ecuador.

Morley Read / Brown-banded water snake (Helicops angulatus) swallowing a Basin treefrog (Boana lanciformis) in a pool full of tadpoles in rainforest, Orellana Province, Ecuador.

Morley Read / Slow motion clip of a large group of Butterflies (Pieridae) taking flight after puddling, absorbing nutrients or minerals from damp soil, Orellana Province, Amazon rainforest, Ecuador.

Morley Read / Large group of Butterflies (Pieridae) taking flight after puddling, absorbing nutrients or minerals from damp soil, Orellana Province, Amazon rainforest, Ecuador.

Morley Read / Large group of Butterflies (Pieridae) taking flight after puddling, absorbing nutrients or minerals from damp soil, Orellana Province, Amazon rainforest, Ecuador.

Morley Read / Scarlet knight butterfly (Temenis pulchra) feeding on a mineral deposit, Amazon rainforest, Orellana Province, Ecuador.

Morley Read / Scarlet knight butterfly (Temenis pulchra) feeding on a mineral deposit, Amazon rainforest, Orellana Province, Ecuador.

Morley Read / Scarlet knight butterfly (Temenis pulchra) feeding on a mineral deposit, Amazon rainforest, Orellana Province, Ecuador.

Morley Read / Peripatus (Velvet Worm) feeding on a cricket, Amazon rainforest, Pastaza Province, Ecuador.

Morley Read / Peripatus (Velvet Worm) feeding on a cricket, Amazon rainforest, Pastaza Province, Ecuador.

Morley Read / Peripatus (Velvet Worm) feeding on a cricket, Amazon rainforest, Pastaza Province, Ecuador.

Morley Read / Peripatus (Velvet Worm) feeding on a cricket, Amazon rainforest, Pastaza Province, Ecuador.

Morley Read / Peripatus (Velvet Worm) feeding on a cricket, Amazon rainforest, Pastaza Province, Ecuador.

Morley Read / Peripatus (Velvet Worm) feeding on a cricket, Amazon rainforest, Pastaza Province, Ecuador.

Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) juvenile male 'Gimli' aged 10 years with wodges of fruit he is feeding on . Gombe National Park, Tanzania. May 2014.

Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) alpha male 'Ferdinand' aged 22 years feeding on the honeycomb from a bees nest watched by his brother 'Faustino' aged 25 years . Go...

Fiona Rogers / Eastern chimpanzee (Pan troglodytes schweinfurtheii) infant male 'Ipo' aged 5 years feeding on charcoal from a fire . Gombe National Park, Tanzania. September 2014.

Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) alpha male 'Ferdinand' aged 22 years feeding on the honeycomb from a bees nest while female 'Samwise' aged 12 begs for some . Gombe...

Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) alpha male 'Ferdinand' aged 22 years feeding on the honeycomb from a bees nest watched by his brother 'Faustino' aged 25 years . Go...

Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) female 'Gremlin' aged 43 years feeding on charcoal . Gombe National Park, Tanzania. September 2014.

Anup Shah / Eastern chimpanzee (Pan troglodytes schweinfurtheii) juvenile male 'Gimli' aged 10 years with wodges of fruit he is feeding on . Gombe National Park, Tanzania. May 2014.

Hermann Brehm / Coal Tit (Parus ater) with food for the chicks, Germany. April

Hermann Brehm / Coal Tit (Parus ater) with food for the chicks Germany. November

Hermann Brehm / Wryneck (Jynx torquilla) carrying prey to nest hole in tree trunk, Hungary. February

Hermann Brehm / Wryneck (Jynx torquilla) carrying prey to nest hole in tree trunk, Hungary. June

Hermann Brehm / Bee-eater (Merops apiaster) with butterfly prey, Hungary. June

Hermann Brehm / Bee-eater (Merops apiaster) with butterfly prey, Hungary. June

Hermann Brehm / Hoopoe (Upupa epops) perched on branch with cricket prey, Hungary. June

Hermann Brehm / Starling (Sturnus vulgaris) at the nesthole, Germany. June

Hermann Brehm / Starling (Sturnus vulgaris) feeding young at the nesthole, Germany. May

Doug Gimesy / Senior wildlife career for Port Stephens Koalas, Julie Jennings, applies an eye ointment to a bushfire victim koala (Phascolarctos cinereus) named 'Char'. Char was caught in a bushfire at Hillville ne...

Doug Gimesy / Julie Jennings, senior wildlife carer for Port Stephens Koalas, feeds bushfire burnt koala (Phascolarctos cinereus) named 'Flash', a supplementary feed, which is in addition to the eucalyptus leave Fl...

Doug Gimesy / Julie Jennings, senior wildlife carer for Port Stephens Koalas, feeds bushfire burnt koala (Phascolarctos cinereus) named 'Flash', a supplementary feed, which is in addition to the eucalyptus leave Fl...

Doug Gimesy / Senior wildlife carer for Port Stephens Koalas, Julie Jennings, feeds a bushfire victim koala (Phascolarctos cinereus) named 'Char', a supplementary feed. Char was caught in a bushfire at Hillville ne...

Doug Gimesy / Senior wildlife carer for Port Stephens Koalas, Julie Jennings, feeds a bushfire victim koala (Phascolarctos cinereus) named 'Char', a supplementary feed. Char was caught in a bushfire at Hillville ne...

Doug Gimesy / ?Senior wildlife carer for Port Stephens Koalas, Julie Jennings, feeding a bushfire victim Koala (Phascolarctos cinereus) named 'Char', a supplementary feed. Char was caught in a bushfire at Hillville...

Phil Savoie / Little nomad bee (Nomad flavoguttata) feeding on Dandelion (Taraxacum offinicale) Monmouthshire, Wales, UK. June

Oscar Dewhurst / Nubian woodpecker (Campethera nubica) foraging on tree trunk. Ol Kinyei Conservancy, Masai Mara National Reserve, Kenya.

Oscar Dewhurst / Bonnet macaque (Acridotheres tristis) infant eating biscuits provided by humans. Hampi, Karnataka, India.

Oscar Dewhurst / Bonnet macaque (Macaca radiata) chewing on mobile phone battery. Hampi, Karnataka, India. 2019.

Oscar Dewhurst / Bonnet macaque (Macaca radiata) female and baby at temple with bag of food taken from humans. Hampi, Karnataka, India. 2019.

Oscar Dewhurst / Woman feeding Bonnet macaque (Macaca radiata) at temple. Hampi, Karnataka, India. 2019.

Oscar Dewhurst / Bonnet macaque (Macaca radiata) feeding on ice-cream stolen from humans. Hampi, Karnataka, India. 2019.

Oscar Dewhurst / Clark's nutcracker (Nucifraga columbiana) feeding on Pine (Pinus sp) seeds. Grand Teton National Park, Wyoming, USA. September.

Hanne & Jens Eriksen / Common starling (Sturnus vulgaris) with food in beak, on lawn, Sweden. May.

Hanne & Jens Eriksen / Baillon's crake (Porzana pusilla) feeding whilst standing on reed. Oman, March.

Hanne & Jens Eriksen / Dromedary (Camelus dromedarius) female and newborn calf, calf suckling. Oman, March.

Hanne & Jens Eriksen / Dromedary (Camelus dromedarius) female and newborn calf, calf suckling. Oman, March.

Hanne & Jens Eriksen / American bison (Bison bison) herd grazing on hillside, South Dakota, USA, September 2017.

Hanne & Jens Eriksen / Whimbrel (Numenius phaeopus) feeding on lawn. Oman, August.

Hanne & Jens Eriksen / Striated heron (Butorides striata) with Scorpionfish (Scorpaenidae) in beak, standing on rock. Oman, November

Hanne & Jens Eriksen / Nile rat (Arvicanthus niloticus) feeding on vegetation. Oman, March.

Hanne & Jens Eriksen / Crab-plover (Dromas ardeola) three walking in a row on mudflat, two with food in beaks. Oman, June.

Nigel Cattlin / Elder aphid (Aphis sambuci) infestation on the young shoot of ornamental Elder (Sambucus sp) in garden. Berkshire, England, UK. April.

Nigel Cattlin / Lupin aphid (Macrosiphum albifrons) infestation on stem and apical shoots of young Tree lupin (Lupinus arboreus). Berkshire, England, UK. May.

Nigel Cattlin / Glasshouse-potato aphid (Aulacorthum solani) colony on Hibiscus (Hibiscus sp) flower bud, house plant.

Nigel Cattlin / Glasshouse-potato aphid (Aulacorthum solani) colony on Hibiscus (Hibiscus sp) flower bud, house plant.

Nigel Cattlin / Pear slug sawfly (Caliroa cerasi) larva on cherry (Prunus sp) leaf with feeding damage. Berkshire, England, UK. October.

Nigel Cattlin / Cabbage (Brassica sp) with feeding damage caused by Wood pigeon (Columba palumbus). Berkshire, England, UK. April.

Nigel Cattlin / Flea beetle (Phyllotreta sp) and feeding damage on Lilacflower (Aubrieta sp). Cultivated in garden, Berkshire, England, UK. April.

Nigel Cattlin / Housefly (Phaonia valida) using labellum to feed on kitchen work surface, close up. England, UK. October.

Nigel Cattlin / Elephant hawk-moth (Deilephila elpenor) caterpillar feeding on Orange balsam (Impatiens capensis) leaves. Berkshire, England, UK. September.

Nigel Cattlin / Flea beetle (Phyllotreta nigripes) feeding damage to leaves of Sweet alyssum (Lobularia maritima). Berkshire, England, UK. August.

Nigel Cattlin / Flea beetle (Phyllotreta nigripes) feeding damage to leaves of Sweet alyssum (Lobularia maritima). Berkshire, England, UK. August.

Nigel Cattlin / Honey bee (Apis mellifera) nectaring on Borage (Borago officinalis). Berkshire, England, UK. August.

Nigel Cattlin / Apple (Malus domestica) fruits with damage scars caused by European apple sawfly (Holocampa testudinea) feeding early in fruit development. Berkshire, England, UK. August.

Nigel Cattlin / Single small white (Pieris rapae) caterpillar on Broccoli (Brassica oleracea) leaf. Berkshire, England, UK. August.

Nigel Cattlin / Large cabbage white (Pieris brassicae) caterpillars feeding on Broccoli (Brassica oleracea) leaf. Berkshire, England, UK. August.

Nigel Cattlin / Flea beetle (Phyllotreta sp) feeding damage to Sweet alyssum (Alyssum maritimum) leaves. Berkshire, England, UK. July.

Nigel Cattlin / Large rose sawfly (Arge pagana) larva feeding on damaged Rose (Rosa sp) leaf. Cultivated in garden, Berkshire, England, UK. July.

Nigel Cattlin / Seven-spot ladybird (Coccinella septum-punctata) larva predating Black bean aphids (Aphis fabae) on Runner bean (Phaseolus coccineus). Bean with buds. Berkshire, England, UK. July.

Nigel Cattlin / Buff-tailed bumblebee (Bombus terrestris) nectaring on Spear thistle (Cirsium vulgare), thistle with Pollen beetle (Brassicogethes aeneus) infestation. Berkshire, England, UK. July.

Nigel Cattlin / Field rose (Rosa arvensis) with Pollen beetles (Brassicogethes aeneus) on petals and anthers. Berkshire, England, UK. June.

Matthew Maran / Red-shanked douc (Pygathrix nemaeus) feeding on leaves, Son Tra Nature Reserve, Vietnam, 2018.

Matthew Maran / Red-shanked douc (Pygathrix nemaeus) feeding on leaves, Son Tra Nature Reserve, Vietnam, 2018.

Matthew Maran / Delacour's langur (Trachypithecus delacouri) feeding on leaves, Ninh Binh, Vietnam, 2018.

Matthew Maran / Delacour's langur (Trachypithecus delacouri) feeding on leaves, Ninh Binh, Vietnam, 2018.