Two white pelicans resting on green grass with a fence in the background at London Zoo, London, England, United Kingdom, Europe

Grey Catbird (Dumetella carolinensis), an insect eating bird, common in North and Central America

Adult gentoo penguin (Pygoscelis papua), feeding chicks at Brown Bluff near the Antarctic Peninsula, Southern Ocean, Polar Regions

Curious king penguin (Aptenodytes patagonicus) at breeding and nesting colony at Salisbury Plain in the Bay of Isles, South Georgia, Southern Ocean, Polar Regions

Ground squirrel (Geosciurus inauris), Kgalagadi Transfrontier Park, Northern Cape, South Africa, Africa

Leopard (Panthera pardus) young male, Mashatu game reserve, Botswana, Africa, Africa

Lava lizard (Microlophus spp) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Juvenile Galapagos brown pelican (Pelecanus occidentalis urinator), smallest species of pelican worldwide, feeding in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Southern elephant seal (Mirounga leonina) challenger bull head detail at Gold Harbour on South Georgia Island, Polar Regions

An adult ivory gull (Pagophila eburnea) on ringed seal kill on Spitsbergen in the Svalbard Archipelago, Norway, Arctic, Europe

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

Galapagos Land Iguana (Conolophus subcristatus), large lizard can can grow to five feet long and live for 60 years, South Plaza island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Wood stork (Mycteria americana) big wading bird of the south Americas, scavenging on black sand turtle beach, Ostional, Guanacaste, Costa Rica

Close up of Scarlet macaw bird's feather, The Maldives, Indian Ocean

Woman photographing Palm plantation colonized by invasive Sodom apple (Calotropis procera), Sharaan Nature Reserve, Medina Province, Saudi Arabia

Adult Galapagos hawk (Buteo galapagoensis) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

The very colorful Galapagos land iguana (Conolophus subcristatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America