Alex Mustard / 2020VISION / Basking shark (Cetorhinus maximus) feeding on plankton in the surface waters around the island of Coll, Inner Hebrides, Scotland, UK, June. 2020VISION Book Plate. Did you know? The largest Basking sha...

Tui De Roy / Marine iguana (Amblyrhynchus cristatus) basking on driftwood, Fernandina Island, Galapagos, South America.

Alex Hyde / Common Lizard (Zootoca vivipara) basking on lichen-covered tree stump. Peak District National Park, Derbyshire, UK. August.

Ross Hoddinott / Male common blue butterfly (Polyommatus icarus) basking wings open on grass, Vealand Farm, Devon, UK. June.

Nick Upton / Seven-spot ladybird (Coccinnella septempunctata) just emerged from hibernation, sunning on a Honeysuckle leaf with buildings in the background, Wiltshire garden, UK, April.

Alex Hyde / Scorpion fly (Panorpa sp.) male, basking in foliage. Peak District National Park, Derbyshire, UK. May.

Andres M. Dominguez / Ocellated or jewelled lizards (Timon lepidus) basking on rocks, Los Alcornocales Natural Park. Southern Spain. May.

Fabio Pupin / Meadow viper, (Vipera ursinii), basking in alpine meadow, Apennines, Italy, September . Non-ex.

Alex Mustard / RF - Basking shark (Ceterhinus maximus) feeding on plankton in Senen Cove, Cornwall, UK. June. (This image may be licensed either as rights managed or royalty free.)

Lucas Bustamante / Marine Iguanas (Amblyrhynchus cristatus) basking. Fernandina Island, Galapagos Islands.

Ross Hoddinott / Common blue butterflies (Polyommatus icarus) basking in the morning light, Vealand Farm, Devon, UK. July

Robert Valentic / Central bearded dragon (Pogona vitticeps) basking in mallee / heathland habitat on the Murrayville Track in the Big Desert Wilderness of north-western Victoria, Australia.

Robert Valentic / Red-bellied Blacksnake (Pseudechis porphyriacus) basking on rock, Lerderderg Gorge, Victoria, Australia, February.

Nick Hawkins / Marine iguana (Amblyrhynchus cristatus) basking on volcanic rock at coast. Isabela Island, Galapagos.

Tui De Roy / Marine iguana (Amblyrhynchus cristatus) group on rock in the waves, Cape Hammond, Fernandina Island, Galapagos

Tui De Roy / Marine iguana (Amblyrhynchus cristatus) group on rocks, Cape Douglas, Fernandina Island, Galapagos

Jeff Foott / Yacare caiman (Caiman yacare) with butterfly on snout, Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.

Roy Mangersnes / Marine iguanas (Amblyrhynchus cristatus) basking on rock next to skeleton of one which starved to death. Unusually warm El Nino waters have killed a lot of the algae which is the food for these iguana...

Roy Mangersnes / Marine iguana (Amblyrhynchus cristatus) resting on log in sunlight, Fernandina Island, Galapagos, April.

Roy Mangersnes / Coastal scene on Fernandina Island, with small group of Marine iguanas (Amblyrhynchus cristatus). Galapagos. April 2016. Normally there would be a much larger group but El Nino weather has killed off...

Franco Banfi / Marine iguanas (Amblyrhynchus cristatus) basking on volcanic rock, Punta Espinosa, Fernandina Island, Galapagos Islands, East Pacific Ocean.

Klein & Hubert / Meerkat (Suricata surricatta) group of five warming up in the sunshine, Kalahari desert, South Africa.

Alex Hyde / Adder (Vipera berus) basking amongst bracken fronds. Peak District National Park, Derbyshire, UK. April.

Alex Hyde / Peacock butterfly (Inachis io) basking with open wings on a white background in mobile field studio. Peak District National Park, Derbyshire, UK. August

Ernie Janes / Boat full of people watching Common Seals (Phoca vitulina) on sand bank at Blakeney Point, Norfolk, August 2013.

Alex Mustard / Basking shark (Cetorhinus maximus) rear view of shark feeding at the surface on plankton, Cairns Of Coll, Isle of Coll, Inner Hebrides, Scotland, UK, North East Atlantic Ocean, June

Alex Mustard / Basking shark (Cetorhinus maximus) feeding at the surface on plankton, Cairns Of Coll, Isle of Coll, Inner Hebrides, Scotland, UK, North East Atlantic Ocean, June

Tui De Roy / Marine iguanas (Amblyrhynchus cristatus) sky-pointing position to keep cool in sun. Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador, June.

Alex Mustard / 2020VISION / Basking shark (Cetorhinus maximus) feeding at the surface on plankton, Cairns of Coll, Inner Hebrides, Scotland, UK, June

Alex Mustard / 2020VISION / Rear view of a Basking shark (Cetorhinus maximus), Cairns of Coll, Inner Hebrides, Scotland, UK, June.

Alex Mustard / 2020VISION / Dorsal fin of a Basking shark (Cetorhinus maximus) at the surface, Cairns of Coll, Inner Hebrides, Scotland. UK, June.

Alex Mustard / 2020VISION / Basking shark (Cetorhinus maximus) feeding in open water, Cornwall, England, UK, June

Mark Carwardine / Marine Iguanas (Amblyrhynchus cristatus), the only marine lizard, basking on volcanic rocks. Galapagos Islands, Ecuador, South America. Book plate from Mark Carwardine's Ultimate Wildlife Experiences.

Laurie Campbell / Male Adder (Vipera berus) basking on rock, Northumberland National Park, England, May

Martin Dohrn / Wood ant (Formica rufa) basking to absorb heat from the sun which is brought back to the nest when they return, Europe

Alex Hyde / Purple emperor butterfly (Apatura iris) male on English Oak (Quercus robur) leaf basking with wings open, UK, Captive.

Alex Mustard / 2020VISION / Rear view of Basking shark (Cetorhinus maximus) feeding on plankton in the surface waters around the island of Coll, Inner Hebrides, Scotland, UK, June. Did you know? The basking shark is the world's...

Alex Mustard / 2020VISION / Basking shark (Cetorhinus maximus) with mouth wide open feeding on plankton concentrated in surface waters close to the island of Coll, Inner Hebrides, Scotland, UK, June 2011. 2020VISION Exhibition....

Colin Varndell / Adder (Vipera berus) basking on pebble beach. Abbotsbury, Dorset, UK, March.

Danny Green / 2020VISION / Grass Snake (Natrix natrix) coiled, basking, Staffordshire, England, UK, April

Danny Green / 2020VISION / Adder (Vipera berus) coiled, basking on moss in the spring sunshine, Staffordshire, England, UK, April. Photographer quote: "OK so snakes are perhaps not as sexy as seals or foxes but I just can't get...

Danny Green / 2020VISION / Viviparous / Common lizard (Zootoca / Lacerta vivipara) basking in the early spring, Staffordshire, England, UK, April. Did you know? Common lizards live further north than any other reptile species.

Danny Green / 2020VISION / Adder (Vipera berus) basking in the spring, Staffordshire, England, UK, April

Danny Green / 2020VISION / Adder (Vipera berus) basking in the spring sunshine flicking tongue, England, UK, April. Did you know? The Adder is the only venomous snake in the UK.

Colin Varndell / Adult Adder (Vipera berus) basking on pebble beach. Abbotsbury, Dorset, UK, March.

Ian Coleman / Illustration of Basking shark (Cetorhinus maximus) feeding. Endangered / threatened species.

Andy Rouse / Two Marine Iguana (Amblyrhynchus cristatus) basking on a volcanic rock. Puerto Egas, Galapagos, September.