The endemic Galapagos marine iguana (Amblyrhynchus cristatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Adult yellow-lipped sea krait (Laticauda colubrina) snake, coming ashore at night on the Volivoli Resort grounds on Viti Levu, Fiji, South Pacific, Pacific

Adult striated caracara (Phalcoboenus australis), close-up, on Carcass Island in the Falkland Islands, South Atlantic Ocean, South America

A lone adult emperor penguin (Aptenodytes forsteri) on sea ice in the Gullet between Adelaide Island and the Antarctic Peninsula, Antarctica, Polar Regions

A lone adult emperor penguin (Aptenodytes forsteri) on sea ice in the Gullet between Adelaide Island and the Antarctic Peninsula, Antarctica, Polar Regions

The endemic Galapagos marine iguana (Amblyrhynchus cristatus) on Espanola Island in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

The endemic Opuntia cactus (Opuntia echios) cactus growing in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Galapagos shearwater (Puffinus subalaris) nesting in lava nook in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Adult snow petrel (Pagodroma nivea nivea) near the Antarctic Peninsula, Antarctica, Southern Ocean, Polar Regions