Konrad Wothe / Fritillary butterfly (Argynnis sp) with Scarce copper butterflies (Lycaena virgaureae) Queyras, Alps, France. August.

Shane Gross / Nurse sharks (Ginglymostoma cirratum) two in a courtship dance at sunrise in a mangrove area near Eleuthera, Bahamas.

Ross Hoddinott / Silver-studded blue butterflies (Plebejus argus) resting on grass and backlit by the sun, Upton Towans, Cornwall, UK. June 2017.

Sandesh Kadur / Bengal monitor (Varanus bengalensis) smelling a stone with its tongue, Ranthambore National Park, Rajasthan, India. 2016.

Sandesh Kadur / Two Bengal monitors (Varanus bengalensis) fighting, Ranthambore National Park, Rajasthan, India. 2016.

Pete Oxford / Nurse Shark (Ginglymostoma cirratum) Hol Chan Marine Reserve, Belize Barrier Reef, Belize.

Alex Mustard / Nurse shark (Ginglymostoma cirratum) young caught in a fishtrap. North Sound, Grand Cayman, Cayman Islands. Caribbean Sea.

Jussi Murtosaari / Scarce Copper (Lycaena virgaureae) male in meadow on ox-eye daisy, Joutsa (formerly Leivonmaki), Finland, July.

Jussi Murtosaari / Geranium Argus butterfly (Plebejus eumedon) feeding on Wood Cranesbill (Geranium sylvaticum) northern Finland, June.

Jeff Rotman / Eye of a Peacock grouper (Cephalopholis argus) Red Sea, Egypt.

Benjamin Barthelemy / Brown argus (Aricia agestis) butterfly, Vallee de la Seille (Seille Valley), Lorraine, France, August.

Alex Hyde / Silver Studded Blue (Plebejus argus), Gran Paradiso National Park, Aosta Valley, Pennine Alps, Italy. July.

Ross Hoddinott / 2020VISION / Common blue butterfly (Polyommatus icarus), resting on flowering heather, Arne RSPB reserve, Dorset, England, UK September

Ross Hoddinott / 2020VISION / Small copper (Lycaena phlaeas) butterfly resting on Common ragwort (Senecio jacobaea), Arne RSPB reserve, Dorset, England, UK, August

Alex Mustard / Caribbean spiny lobster (Panulirus argus) scampers across a coral reef amongst sponges, Bloody Bay Wall, Little Cayman, Cayman Islands. British West Indies, Caribbean Sea.

Guy Edwardes / 2020VISION / Silver-studded blue butterfly (Plebejus argus), New Forest, Hampshire, England, UK, July

Chris Gomersall / 2020VISION / Silver-studded blue butterfly (Plebeius argus) well-worn male at rest on Bell heather (Erica cinerea) Minsmere RSPB reserve, Suffolk, UK, July

Chris Gomersall / 2020VISION / Silver-studded blue butterfly (Plebeius argus) male at rest on Bell heather (Erica cinerea) Minsmere RSPB reserve, Suffolk, UK, July

Chris Gomersall / 2020VISION / Silver-studded blue butterfly (Plebeius argus) at rest on plant, Minsmere RSPB reserve, Suffolk, UK, July. 2020VISION Book Plate.

Chris Gomersall / 2020VISION / Small copper butterfly (Lycaena phlaeas) on Bell heather (Erica cinerea), Minsmere RSPB reserve, Suffolk, UK, July

Juergen Freund / Eyed / Leopard sea cucumber (Bohadschia argus), close-up of the skin. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Imperial / Emperor shrimp (Periclimenes imperator / Zenopontonia rex) on an Eyed / Leopard sea cucumber (Bohadschia argus). Lembeh Strait, North Sulawesi, Indonesia

Juergen Freund / Imperial / Emperor shrimp (Periclimenes imperator / Zenopontonia rex) on an Eyed / Leopard sea cucumber (Bohadschia argus). Lembeh Strait, North Sulawesi, Indonesia.

Chris Shields / Illustration of British native ladybirds. From top left to right: Sixteen or 16-spot ladybird (Tytthaspis 16-punctata); Thirteen or 13-spot ladybird (Hippodamia 13-punctata); Bryony ladybird (Epilach...

Florian Möllers / Common blue butterfly (Polyommatus icarus)warming up, Berlin, Germany, July

Colin Varndell / Common blue butterfly (Polyommatus icarus) at rest. Dorset, UK, May

Stephen Dalton / Small copper butterfly (Lycaena phlaeas) on Helianthus flower, UK

Wild Wonders of Europe / Maitland / Italian rye grass (Lolium multiflorum) and Silver studded blue butterfly (Plebejus argus) Stenje region, Galicica National Park, Macedonia, June 2009, dead insects and plants placed directly on scanne...

Wild Wonders of Europe / Maitland / Rose campion / catchfly (Lychnis coronaria) in flower with an Eschers blue butterfly (Polyommatus escheri) and Silver-studded blue butterfly (Plebejus argus) Stenje region, Galicica National Park, Mac...

Wild Wonders of Europe / Maitland / Nipplewort (Lapsana communis) in flower with Eschers blue butterfly (Polyommatus escheri) and Silver-studded blue (Plebejus argus) Stenje region, Galicica National Park, Macedonia, June 2009, dead ins...

Wild Wonders of Europe / Maitland / Golden oat grass (Trisetum flavescens) and Silver studded blue butterfly (Plebejus argus) Stenje region, Galicica National Park, Macedonia, June 2009, dead insects and plants placed directly on scanne...

Wild Wonders of Europe / Maitland / European feather grass (Stipa pennata) with Eschers blue butterfly (Polyommatus escheri) and Silver studded blue butterfly (Plebejus argus) Stenje region, Galicica National Park, Macedonia, June 2009,...

Wild Wonders of Europe / Maitland / Female Common blue butterfly (Polyommatus icarus) on Trefoil (Lotus sp) Lake Macro Prespa, Stenje region, Galicica National Park, Macedonia, June 2009

Ross Hoddinott / Silver-studded blue butterfly {Plebejus argus}resting on grass, Cornwall, UK. June

Guy Edwardes / Common blue butterfly (Polyommatus icarus) resting on grass, Dorset, England, May

Kim Taylor / Small copper butterfly (Lycaena phlaeas) Surrey, England

Kim Taylor / Common blue butterfly (Polyommatus icarus) females awaking at sunrise among Harebells (Campanula rotundifolia) Surrey, England, digital composite

Andy Sands / Common Blue (Polyommatus icarus) Male at rest wings closed, on flower, Captive

Ross Hoddinott / Common blue butterfly {Polyommatus icarus) Cornwall, UK. June

Ross Hoddinott / Common blue butterfly {Polyommatus icarus} resting on Bee orchid {Ophrys apifera}, Bude, Cornwall.

Jose B. Ruiz / Common blue butterfly {Polyommatus icarus} Spain

Bernard Castelein / Small copper butterfly {Lycaena phlaeas} on flower. Kalmthoutse Heide, Belgium

Ross Hoddinott / Common blue butterfly {Polyommatus icarus} resting on plantain, Dorset. UK

Ross Hoddinott / Common blue butterfly {Polyommatus icarus} Dunsdon Nature Reserve (DWT), near Holsworthy, Devon. UK

Ross Hoddinott / Common blue butterfly {Polyommatus icarus} resting on bee orchid {Ophrys apifera}, Cornwall. UK

Ross Hoddinott / Common blue butterfly {Polyommatus icarus} Cornwall UK

Bernard Castelein / Silver studded blue butterflies {Plebejus argus} Kelmthoutse Heide, Belgium

Bernard Castelein / Silver studded blue butterfly {Plebejus argus} Kalmthoutse Heide, Belgium

Hans Christoph Kappel / Chalkhill blue butterfly {Polyommatus coridon} resting. Germany.

Doug Perrine / Spiny lobsters {Panulirus argus} annual migration from juvenile to adult habitat, Bahamas

Chris Packham / Silver Studded Blue Butterfly on heather (Plebejus argus) England

Geoff Scott-Simpson / Common blue butterfly {Polyommatus icarus} on Common spotted orchid {Dactylorhiza fuchsii} UK peakdale peak district NP

Fred Bavendam / Leopard Sea Cucumber (Bohadschia argus) ejects a mass of long white sticky cuvierian tubules as a defense when disturbed, Manado, Indonesia

Doug Perrine / Spiny lobster migration march from juvenile to adult habitat {Panulirus argus} Bahamas, Caribbean (Non-ex).

Shane Gross / Caribbean spiny lobster (Panulirus argus), two in territorial fight in coral reef. Exuma Cays Land and Sea Park, marine protected area, Bahamas.

Yashpal Rathore / Bengal monitor (Varanus bengalensis) Tadoba National Park, India

Yashpal Rathore / Bengal monitor (Varanus bengalensis) basking on the tree, Jim Corbett National Park, India

Shane Gross / Nocturnal Caribbean spiny lobster (Panulirus argus) at night crawling in the Seagrass (Thalassia testudinum) looking for food. Eleuthera, Bahamas.

Steven David Miller / Herpetologist holding a Carpet or Diamond Python (Morelia spilota), The Australian Reptile Park, Gosford, New South Wales, Australia. April. (Editorial use only)

Rod Williams / Male brown argus (Aricia agestis) on wild marjoram, Hutchinson's Bank, New Addington, London, England, August

Rod Williams / Male brown argus butterfly (Aricia agestis) feeding on common ragwort, Sutcliffe Park Nature Reserve, Eltham, London, July

Bernard Castelein / Common indian monitor (Varanus bengalensis), Keoladeo NP, Bharatpur, India

Ralph Pace / Caribbean Spiny Lobster (Panulirus argus), Caribbean

Robert Thompson / Brown argus butterfly (Aricia agestis), French Pyrenees. May

Shane Gross / Nurse shark (Ginglymostoma cirratum) male biting onto the pectoral fin of a female whilst mating, Eleuthera, Bahamas.

Shane Gross / Nurse shark (Ginglymostoma cirratum) male biting onto the pectoral fin of a female whilst mating, Eleuthera, Bahamas.

Shane Gross / Nurse sharks (Ginglymostoma cirratum) ready to mate. Showing male claspers, which are used to channel semen into the female during mating, Eleuthera, Bahamas.

Shane Gross / Nurse sharks (Ginglymostoma cirratum) ready to mate. Showing male claspers, which are used to channel semen into the female during mating, Eleuthera, Bahamas.

Shane Gross / Nurse shark (Ginglymostoma cirratum) two males bite onto the pectoral fins of a larger female while trying to mate with her, Eleuthera, Bahamas

Shane Gross / Nurse shark (Ginglymostoma cirratum) male biting onto the pectoral fin of a female whilst mating, Eleuthera, Bahamas.

Shane Gross / Nurse shark (Ginglymostoma cirratum) male biting onto the pectoral fin of a female whilst mating, Eleuthera, Bahamas.

Shane Gross / Close up view of the eye of Nurse shark (Ginglymostoma cirratum) The Bahamas.

Shane Gross / Nurse shark (Ginglymostoma cirratum) resting in shallow water at sunset to save energy for mating which will take place the next morning. Eleuthera, Bahamas.

Shane Gross / Nurse sharks (Ginglymostoma cirratum) three in a courtship dance at sunrise in a mangrove area near Eleuthera, Bahamas.

Shane Gross / Nurse sharks (Ginglymostoma cirratum) three in a courtship dance at sunrise in a mangrove area near Eleuthera, Bahamas.

Shane Gross / Nurse shark (Ginglymostoma cirratum) resting near a coral reef and other fish like blue tangs in The Bahamas.

Shane Gross / Nurse sharks (Ginglymostoma cirratum) three in a courtship dance at sunrise in a mangrove area, Eleuthera, Bahamas.

Shane Gross / Nurse shark (Ginglymostoma cirratum) juvenile hiding under the reef, The Bahamas.

Shane Gross / Nurse shark (Ginglymostoma cirratum) pup, swimming in a mangrove forest. Bimini, Bahamas.

Shane Gross / Nurse shark (Ginglymostoma cirratum) hiding under a ship wreck in Caribbean sea off Cancun, Yucatan, Mexico.

Shane Gross / Nurse shark (Ginglymostoma cirratum) bites onto a female while mating in the shallows, with another male nearby. Eleuthera, Bahamas. Awarded in underwater category, Wildlife Photographer of the Year 2...

Georgette Douwma / Yellow boxfish (Ostracion cubicus). North Sulawesi, Indonesia.

Georgette Douwma / Yellow boxfish (Ostracion cubicus). North Sulawesi, Indonesia.

David Fleetham / Trumpetfish (Aulostomus maculatus) swimming behind Yellow boxfish (Ostracion cubicus) as a blind to ambush prey. Yap, Micronesia.

Franco Banfi / Nurse shark (Ginglymostoma cirratum) stealing fish from diver. Chinchorro Banks Biosphere Reserve, Quintana Roo, Yucatan Peninsula, Mexico. May 2015.

Franco Banfi / Nurse shark (Ginglymostoma cirratum) swimming over reef. Chinchorro Banks Biosphere Reserve, Quintana Roo, Yucatan Peninsula, Mexico.

Franco Banfi / Nurse shark (Ginglymostoma cirratum) swimming through coral reef. Chinchorro Banks Biosphere Reserve, Quintana Roo, Yucatan Peninsula, Mexico. May 2015.

Magnus Lundgren / Wild Wonders of China / Yellow boxfish (Ostracion cubicus) Sai Kung East Country Oark, Hong Kong, China.

Ross Hoddinott / Silver-studded blue butterflies (Plebejus argus) resting on grass and backlit by the sun, Upton Towans, Cornwall, UK. June.

David Fleetham / Tiny brittle star (Ophiothrix sp) crawling across Sea cucumber, (Bohadschia argus) Yap, Micronesia.

David Fleetham / Sea cucumber (Bohadschia argus) which has ejected a part of its internal organs called Cuvierian tubules. These significantly sticky strings are a defense mechanism designed to deter predators. Yap,...

David Fleetham / Necklace seastar (Fromia monilis) on Sea cucumber (Bohadaschia argus) Yap, Micronesia.

David Fleetham / Harlequin Crab (Lissocarcinus orbicularis) camouflaged to match its commensal host, a sea cucumber (Bohadaschia argus). Yap, Micronesia.

David Fleetham / Peacock grouper (Cephalopholis argus) and White mouthed moray eels (Gymnothorax meleagris) hunting together cooperatively, Hawaii.

David Fleetham / Emperor shrimp (Periclemenes imperator) on a leopard sea cucumber (Bohadschia argus), Indonesia.

Rod Williams / Brown argus butterfly (Aricia agestis) feeding on Common vetch (Vicia sativa) Sutcliffe Park Nature Reserve, Eltham, London, England, UK. May.