Kim Taylor / Golden-eyed Horse Fly (Chrysops quadratus), close-up of eyes. UK

Kim Taylor / European tree frog (Hyla arborea) leaping to catch fly Captive

Barry Bland / Salt Water Fly Fishing on the sand banks of Tevawa, Fiji. 2004

Barry Bland / Rainbow Trout {Salmo gairdneri} Fly Fishing on the Clutha River, Wanaka, New Zealand. Model Released.

Hans Christoph Kappel / Ant (Formica polyktena) attacking a fly

Kim Taylor / Tsetse fly {Glossina morsitans} feeding on human arm, from Africa

Tom Vezo / Snow geese fly in V formation {Chen caerulescens} Bosque del Apache, NM, USA.

Kim Taylor / Archer fish {Toxotes chatareus} jetting water to catch a fly on vegetation above. Captive.

Kim Taylor / Male hoverfly hovering {Eristalis sp.} Europe.

Kim Taylor / Venus flytrap (Dionaea muscipula) leaf with trapped bluebottle fly

Rolf Nussbaumer / Eastern amberwing {Perithemis tenera} on flower, Texas, USA.

Heidi & Hans-Juergen Koch / Blue Bottle Fly (Calliphora erythrocephala) flying, worldwide distribution

John Downer / Fly trapped in 30 million year-old amber. Mexico.

Warwick Sloss / Common bluebottle fly adult feeding close-up

Warwick Sloss / Common house fly maggots {Musca domestica}

Richard Du Toit / Lioness head covered in flies {Panthera leo} Masai Mara, Kenya

Mark Moffett / Leafcutter Ant (Atta cephalotes) worker carries leaf with its jaws full, workers carrying leaves must rely on a special cast of smaller ants riding on the leaves to defend against Phorid fly (Phoridae...

Gerry Ellis / Fly Agaric (Amanita muscaria) highly poisonous mushrooms growing on forest floor, North America

Mark Moffett / Goat Fly (Phytalmia mouldsi) males clashing antlers while fighting, Queensland, Australia

Geoff Scott-Simpson / Fly agaric toadstools {Amanita muscaria} Lancashire, UK

Pete Oxford / Flap necked chameleon catching fly with tongue, Africa

Piotr Naskrecki / Tachinid Fly (Tachinidae), Woburn, Massachusetts

Piotr Naskrecki / Horse Fly (Tabanidae), Suriname

Piotr Naskrecki / Tree Squirrel Bot Fly (Cuterebra emasculator)

Piotr Naskrecki / Moth Fly (Clogmia sp), Woburn, Massachusetts

Piotr Naskrecki / Mantis Fly (Climaciella brunnea), Estabrook Woods, Concord, Massachusetts

Piotr Naskrecki / Mantis Fly (Climaciella brunnea), Estabrook Woods, Concord, Massachusetts

Richard Steel / 2020VISION / Spotted flycatcher (Muscicapa striata), perched on branch with fly prey, Clwyd, Wales, UK, June.

Nick Upton / Common bee fly (Bombylius major) hovering to feed from Blackthorn blossom (Prunus spinosa), Wiltshire, UK, April.

Nick Upton / Yellow dung fly (Scathophaga stercoraria) killed by pathogenic fungus of flies (Entomophthora muscae) clinging to a thistle leaf with wings spread, Wiltshire pastureland, UK, June.

Nick Upton / Male Dance Fly (Empis tessellata) resting on a leaf, Wiltshire garden, UK, May.

Nick Upton / Male and female Celery flies (Euleia heraclei) performing zig-zagging courtship dance on a leaf, Wiltshire garden, UK, April.

Nick Upton / Burdock gall fly (Terellia tussilaginis) female feeding on an Oxeye daisy / Marguerite flower (Leucanthemum vulgare) chalk grassland meadow, Wiltshire, UK, August.

Nick Upton / Face fly / Autumn house fly (Musca autumnalis) bubbling its stomach contents to speed digestion, Wiltshire garden, UK, April.

Nick Upton / Male Yellow dung fly (Scathophaga stercoraria) on the look out for fly prey from a grass blade, Wiltshire meadow, UK, April.

Nick Upton / Male Yellow dung flies (Scathophaga stercoraria) waiting on sheep dung for females to arrive, with Mallards (Anas platyrhynchos) and a lake in the background, Wiltshire, UK, March.

Nick Upton / Downland villa bee fly (Villa cingulata) a Red data book endangered species feeding on Common hogweed flowers (Heracleum sphondylium) in a chalk grassland meadow, Wiltshire, UK, June.

Nick Upton / Male March fly (Bibio lanigerus) resting on grass stem in heathland, Sandy, Bedfordshire, UK, April.

Nick Upton / Male March fly (Bibio lanigerus) resting on grass stem in heathland, Sandy, Bedfordshire, UK, April.

Nick Upton / Hoverfly (Eristalis intricarius) male feeding on flowering Wild marjoram (Origanum vulgare) chalk grassland meadow, Wiltshire, UK, July

Nick Upton / Snipe fly or Downlooker fly (Rhagio scolopacea) perched on riverside leaf, on lookout for aerial insect prey. Wiltshire, UK, May.

Nick Upton / Slender-footed robberfly (Leptarthrus brevirostris) standing on Yellow rattle flower (Rhinanthus minor), chalk grassland meadow, Wiltshire, UK, June.

Nick Upton / Male Scorpion Fly (Panorpa germanica) standing on a leaf in woodland undergrowth, Wiltshire, UK, May.

Nick Upton / A Marsh fly / Snail-killing fly (Dichetophora finlandica), nationally scarce in the UK, standing on a Woolly thistle leaf (Cirsium eriophorum), chalk grassland meadow, Wiltshire, UK, June.

Nick Upton / Root maggot fly (Pegomya sp.) drinking water from a leaf after rain, Wiltshire garden, UK, April.

Nick Upton / Violet black-legged robber fly (Dioctria atricapilla) with a hoverfly as prey, chalk grassland meadow, Wiltshire, UK, June.

Nick Upton / Violet black-legged robber fly (Dioctria atricapilla) with Dashed slender robber fly (Leptogaster guttiventris) prey, chalk grassland meadow, Wiltshire, UK, June.

Nick Upton / Sexually dimorphic St. Mark's fly / March fly (Bibio marci) pair mating; males have much larger eyes and clear wings, Wiltshire garden, UK, May.

Nick Upton / Female Celery fly (Euleia heraclei) sunbasking on a leaf, Wiltshire garden, UK, April.

Nick Upton / Thick-headed fly / Wasp fly / Conopid fly (Myopa sp.) a parasite of bees, sunbasking on a leaf, Wiltshire garden, UK, April.

Nick Upton / Parasite fly / Tachinid fly (Phasia hemiptera) a parasite of shieldbugs, feeding on ornamental flowers, Wiltshire garden, UK, August. . Property released.

Nick Upton / Parasite fly / Tachinid fly (Phasia hemiptera) a parasite of shieldbugs, feeding on ornamental flowers, Wiltshire garden, UK, August. . Property released.

Nick Upton / Sunfly (Helophilus pendulus) feeding on Woolly thistle flower (Cirsium eriophorum), chalk grassland meadow, Wiltshire, UK, August.

Hermann Brehm / Fly Agaric (Amanita muscaria) toadstools in woodland, Germany, October

Wild Wonders of Europe / Muñoz / Scarce blue dragon fly (Ischnura pumilio), immature female in aurantiaca stage. Campanarios de Azaba Biological Reserve, a rewilding Europe Area, Salamanca, Castilla y Leon, Spain, June

Wild Wonders of Europe / Muñoz / Scarce blue dragon fly (Ischnura pumilio), immature female in aurantiaca stage. Campanarios de Azaba Biological Reserve, a rewilding Europe Area, Salamanca, Castilla y Leon, Spain, June

Wild Wonders of Europe / Muñoz / Robberfly (Asilidae) with damselfly prey, Campanarios de Azaba Biological Reserve, a rewilding Europe Area, Salamanc, Castilla y Leon, Spain

Wild Wonders of Europe / Muñoz / Robberfly (Asilidae) feeding on damselfly Campanarios de Azaba Biological Reserve, a rewilding Europe Area, Salamanc, Castilla y Leon, Spain

Wild Wonders of Europe / Widstrand / Staffan Widstrand, photographer, and pilot Albert in the Ultralight trike/Deltawing, about to fly over Danube Delta, Danube delta rewilding area, Romania June 2012

Colin Varndell / Hover-fly (Helophilus pendulus) on Michaelmas daisy flower. Dorset, UK, September.

Mark Hamblin / 2020VISION / Eider (Somateria mollissima) pair in spring plumage, Scotland, UK, May. Did you know? Eider ducks can fly at speeds up to 70 miles per hour.

Andy Sands / Long-legged fly (Poecilobothrus sp) Male on leaf with reflection in water; these flies prefer to be in the proximity of water, Captive, UK, August

Chris Mattison / Pitcher plant (Sarracenkia sp.), with bluebottle fly (Calliphoridae) on lip. UK, March.

Chris Mattison / Lantern bug / Lantern fly (Pyrops sp.). Endemic to Sukau, Sabah, Borneo.

Albert Lleal / Fruit Fly (Drosophila sp) pupae

Alex Hyde / Fly Agaric (Amanita muscaria) toadstool growing on the University of Nottingham campus, UK, November

Alex Hyde / Hoverfly (Helophilus pendulus), overhead view showing Batesian wasp mimicry, photographed on a white background. Derbyshire, UK. September.

Alex Hyde / Hoverfly (Syrphus ribesii) showing Batesian mimicry, overhead view photographed on a white backgroud. Derbyshire, UK. August.

Alex Hyde / Horsefly (Philipomyia aprica) photographed on a white background. Aosta Valley, Monte Rosa Massif, Pennine Alps, Italy. July.

Alex Hyde / Robber Fly (Asilidae) overhead view photographed on a white background. Aosta Valley, Monte Rosa Massif, Pennine Alps, Italy. July.

Alex Hyde / Prong horn Hoverfly (Chrysotoxum festivum) head on portrait of the wasp mimic, photographed on a white background, Aosta Valley, Monte Rosa Massif, Pennine Alps, Italy. July.

Alex Hyde / Prong horn Hoverfly (Chrysotoxum festivum), a wasp mimic, photographed on a white background, Aosta Valley, Monte Rosa Massif, Pennine Alps, Italy. July.

Alex Hyde / Prong horn Hoverfly (Chrysotoxum festivum), a wasp mimic, photographed on a white background, Aosta Valley, Monte Rosa Massif, Pennine Alps, Italy. July.

Jabruson / Mottled 'Bolongo' tree bark patterns and shades with fly on lower tree trunk, Bai Hokou, Dzanga-Ndoki National Park, Central African Republic.

Jabruson / Mottled 'Bolongo' tree bark patterns and shades with fly on lower tree trunk, Bai Hokou, Dzanga-Ndoki National Park, Central African Republic.

David Kjaer / Common / Viviparous Lizard (Lacerta vivipara) watching a hovering fly. Wiltshire, England, May.

Wild Wonders of Europe / Widstrand / Spanish oil beetle (Berberomeloe majalis) or 'The Spanish Fly', in Dehesa forests, Campanarios de Azaiba Nature Reserve, Salamanca Region, Castilla y Leon, Spain

Wild Wonders of Europe / Widstrand / Spanish oil beetle (Berberomeloe majalis) or 'The Spanish Fly', in Dehesa forests on French lavender (Lavandula stoechas) in Campanarios de Azaiba Nature Reserve, Salamanca Region, Castilla y Leon, Sp...

Mark Carwardine / Jaguar (Panthera onca) looking up, watching fly, Cuiaba River, Pantanal, Brazil

Mark Carwardine / Jaguar (Panthera onca) looking up, watching fly, Cuiaba River, Pantanal, Brazil

Floris van Breugel / Fruit fly (Drosophila melanogaster) in a fruit bowl. The fly was tethered for this image (tether removed digitally)

Colin Varndell / Hover-fly (Helophilus pendulus) on flower, September. England

Jan Hamrsky / Caddisfly larva (Trichoptera, family Polycentropodidae), scavenging mayfly nymph, Europe, May, controlled conditions

Jan Hamrsky / Caddisfly larva (Trichoptera, family Polycentropodidae), climbing the root, Europe, May, controlled conditions

Jan Hamrsky / Case-building caddisfly (Trichoptera) larva in protective case made of pieces of plant leaves, Europe, April, controlled conditions

Jan Hamrsky / Case-building caddisfly (Trichoptera) larva in protective case feeding on algae, Europe, April, controlled conditions

Jan Hamrsky / Case-building caddisfly (Trichoptera) larva repairing its protective case made of pieces of plant leaves, Europe, April, controlled conditions

Jan Hamrsky / Case-building caddisfly (Trichoptera) larva in protective case made of sand grains, Europe, April, controlled conditions

Jan Hamrsky / Case-building caddisfly (Trichoptera) larva in protective case made of sand grains, Europe, April, controlled conditions

Colin Varndell / Spotted crane fly (Nephrotoma appendiculata) at rest on nettle leaf, Dorset, UK July

Ernie Janes / Dung fly (Scathophaga stercoraria) on dung, Norfolk, UK July

Jan Hamrsky / Net-spinning caddisfly larva (Trichoptera, Hydropsychidae) collecting organic debris from the trapping net of its shelter, Europe, May, controlled conditions

Jan Hamrsky / Net-spinning caddisfly larva (Trichoptera, Hydropsychidae) in its shelter attached to the stones at the bottom, Europe, May, controlled conditions

Jan Hamrsky / Net-spinning caddisfly larva (Trichoptera, Hydropsychidae) collecting organic debris from the trapping net of its shelter, Europe, May, controlled conditions

Jan Hamrsky / Net-spinning caddisfly larva (Trichoptera, Hydropsychidae) collecting organic debris from the trapping net of its shelter, Europe, May, controlled conditions

Jan Hamrsky / Net-spinning caddisfly larva (Trichoptera, Hydropsychidae) collecting organic debris from the trapping net of its shelter, Europe, May, controlled conditions