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...

Doug Perrine / Scalloped hammerhead shark portrait {Sphyrna lewini} Galapagos Islands, East Pacific Ocean ~(Non-ex).

Alex Mustard / A large Great hammerhead shark (Sphyrna mokarran), about 4m in length, cruises overhead. Bahamas, Tropical West Atlantic Ocean.

Mark Carwardine / Great white shark (Carcharodon carcharias) underwater, Guadalupe Island, Mexico (North Pacific)

Jurgen Freund / Whale shark {Rhincodon typus} Sulu-sulawesi seas, Indo-pacific

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor) and Remora. The biggest fish in the world has only started to visit the Azores in the past three years due to water temperatu...

Anup Shah / Head on view of male Indian gharial {Gavialis gangeticus} India, Endangered species

Neil Lucas / Cuban crocodile (Crocodylus rhombifer)

Adam White / Giant tortoise {Geochelone elephantopus} wave breaking on back, Aldabra, Seychelles

Wild Wonders of Europe / Lundgren / Loggerhead turtle (Caretta caretta) with a shoal of Pilot fish (Naucrates ductor) Pico, Azores, Portugal, June 2009

Sandesh Kadur / King cobra (Ophiophagus hannah) male and female courtship, Agumbe, Karnatka, India, captive

Patricio Robles Gil / Fiji banded iguana (Brachylophus fasciatus) on (Heliconia) plant, Fiji Islands, endangered species (iguana)

Inaki Relanzon / Hawksbill turtle (Eretmochelys imbricata) in shallow water. Nosy Be, north Madagascar, Africa.

Jurgen Freund / Split-level shot of Leatherback sea turtle (Dermochelys coriacea) baby swimming in the sea near the beach. Warmamedi beach, Bird's Head Peninsula, West Papua, Indonesia, July 2009

Jurgen Freund / Baby Leatherback sea turtle (Dermochelys coriacea) seen from below. Warmamedi beach, Bird's Head Peninsula, West Papua, Indonesia, July

Ann & Steve Toon / Two Loggerhead turtle (Caretta caretta) hatchlings moving from nest to sea at night, Banga Nek, Kwazulu Natal, South Africa

Jurgen Freund / Hawksbill turtle (Eretmochelys imbricata) swimming over a reef towards the camera. Banda Neira, Moluccas, Indonesia, December 2009.

Doug Perrine / Head profile of Loggerhead turtle {Caretta caretta} Bahamas Caribbean Sea, Atlantic Ocean ~(Non-ex).

Jurgen Freund / Hawksbill turtle (Eretmochelys imbricata) swimming, seen from below. Banda Neira, Moluccas, Indonesia, December 2009.

Georgette Douwma / Hawksbill turtle (Eretmochelys imbricata) swimming up to the surface to breathe, Rinca, Komodo National Park, Indonesia.

Graham Eaton / Leatherback Turtle (Dermochelys coriacea) returning to the sea after egg laying. Cayenne, French Guiana, June.

Wild Wonders of Europe / Zankl / Loggerhead turtle (Caretta caretta) hatching, Dalyan Delta, Turkey, July 2009

Ole Jorgen Liodden / Galapagos Green Turtle (Chelonia mydas agassizi) near sea surface. Galapagos

Claudio Contreras / Hawksbill turtle (Eretmochelys imbricata) Cancun National Park, Caribbean Sea, Mexico, July

Graham Eaton / Leatherback Turtle (Dermochelys coriacea) hatchlings crossing a beach towards the sea. Cayenne, French Guiana, July.

Graham Eaton / Leatherback Turtle (Dermochelys coriacea) hatchling crossing a beach to get to the sea. Cayenne, French Guiana, July.

Doug Perrine / Green sea turtle (Chelonia mydas) being cleaned of algae by Yellow tangs / surgeonfish (Zebrasoma flavescens), Puako, Kona, Hawaii, USA, June, Endangered species

Doug Perrine / Loggerhead turtle {Caretta caretta} head and flipper close up. Bahamas, Caribbean Sea, Atlantic ~(Non-ex).

Wild Wonders of Europe / Lundgren / Loggerhead turtle (Caretta caretta) swimming with the top of its shell just above the water surface, Pico, Azores, Portugal, June 2009

Inaki Relanzon / Madagascar radiated tortoise, (Geochelone radiata) crossing sand, Anakao, South Tulear, South Madagascar, May

Inaki Relanzon / Madagascar radiated tortoise (Geochelone radiata) rear view, Anakao, South Tulear, South Madagascar

Edwin Giesbers / Radiated tortoise (Geochelone radiata) portrait, Berenty Reserve, Madagascar

Visuals Unlimited / Pig-nose Fly River Turtle (Carettochelys insculpta), an endangered species from New Guinea and Australia.

Larry Michael / Blanding's turtle {Emydoidea blandingi} juvenile, endangered, Wisconsin, USA

Lynn M Stone / Blanding's turtle head portrait

Peter Scoones / Komodo Dragon head portrait {Varanus komodoensis} captive, Tauranga Zoo, Sydney, Australia

David Fleetham / Komodo dragon (Varanus komodoensis), the world's largest lizard. Rinca Island, Komodo National Park, Indonesia.

Alex Hyde / Lesser Chameleon (Furcifer minor) head portrait of male, Central Highlands, Madagascar. IUCN Vulnerable Species.

Robert Valentic / Marbled velvet gecko, male {Oedura marmorata} Northern Territory, Australia

Patricio Robles Gil / Fiji banded iguana {Brachylophus fasciatus} Fiji Is, endangered

Michael D. Kern / Seipps day gecko {Phelsuma seippi} Madagascar

Pete Oxford / Lesser chameleon (Furcifer minor) male, Ambohijanahary Special Reserve, MADAGASCAR, endemic

Sandesh Kadur / King Cobra (Ophiophagus hannah) in water, captive, Agumbe, Karnatka, India

Sandesh Kadur / Young King cobra (Ophiophagus hannah) hatchling climbing branch with cup fungus, captive, Agumbe, Karnatka, India

John Cancalosi / Male Antiguan racer {Alsophis antiguae} world's rarest snake, Antigua, West Indies. Critically endangered species

Anup Shah / Indian gharial {Gavialis gangeticus} head reflected in water, India, Endangered species.

Konstantin Mikhailov / Indian gharial (Gavialus gangeticus) Rapati River, Chitwan NP, Nepal