Daniel Heuclin / Blue iguana (Cyclura lewisi) captive, endangered species occurs in Cayman Islands.

Ben Hall / Marine Iguana (Amblyrhynchus cristatus) on rock with lava lizard sitting on its head, Galapagos Islands, May.

Pascal Kobeh / Marine iguana (Amblyrhynchus cristatus) swimming back to the surface, Galapagos. Pacific ocean.

Tui De Roy / Great Blue Heron (Ardea herodias), hunting newly-hatched Marine Iguana (Amblyrhynchus cristatus), Punta Espinosa, Fernandina Island, Ecuador

Roland Seitre / Grand Cayman Blue Iguana (Cyclura lewisi), adult that has been reintroduced to the wild from captive breeding programme. Endangered species.

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

Daniel Heuclin / Fabian's lizard (Liolaemus fabiani) basking under blue sky, portrait. Salar de Atacama, Chile. September. Controlled conditions.

Daniel Heuclin / Fabian's lizard (Liolaemus fabiani) basking on salt deposit under blue sky. Salar de Atacama, Chile. September. Controlled conditions.

Tui De Roy / Flightless cormorant (Phalacrocorax harrisi) on nest looking at Galapagos marine iguana (Amblyrhynchus cristatus). Crab on rock below. Cape Douglas, Fernandina Island, Galapagos.

Jeff Vanuga / Great blue heron (Ardea herodias) feeding on newly hatched Galapagos marine iguana (Amblyrhynchus cristatus cristatus). Espinosa Point, Fernandina Island, Galapagos Islands, Ecuador.

Lucas Bustamante / Blue-spotted dwarf iguana (Enyalioides praestabilis) on branch, Sumaco, Napo, Ecuador.

Tui De Roy / Great blue herom (Ardea herodias) with newly hatched marine iguana prey, Galapagos