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An adult cream-colored woodpecker, Celeus flavus, perched in a tree within the Pacaya Samiria Preserve, Peru.

An adult cream-colored woodpecker, Celeus flavus, perched in a tree within the Pacaya Samiria Preserve, Peru.

An adult collared trogon, Trogon collaris, perched during the day in a tree within the Pacaya Samiria Preserve, Peru.

An adult collared trogon, Trogon collaris, perched during the day in a tree within the Pacaya Samiria Preserve, Peru.

An adult cocoi heron, Ardea cocoi, taking flight from a tree within the Pacaya Samiria Preserve, Peru.

Three adult cobalt-winged parakeets, Brotogeris cyanoptera, perched on a tree within the Pacaya Samiria Preserve, Peru.

An adult cobalt-winged parakeet, Brotogeris cyanoptera, perched on a tree within the Pacaya Samiria Preserve, Peru.

A pair of adult capped herons, Pilherodius pileatus, on the riverbank within the Pacaya Samiria Preserve, Peru.

A trio of adult capped herons, Pilherodius pileatus, on the riverbank within the Pacaya Samiria Preserve, Peru.

A pair of adult capped herons, Pilherodius pileatus, perched in a tree within the Pacaya Samiria Preserve, Peru.

Adult buff-throated Woodcreeper, Xiphorhynchus guttatus, perched on a tree within the Pacaya Samiria Preserve, Peru.

Adult buff-throated Woodcreeper, Xiphorhynchus guttatus, perched on a tree within the Pacaya Samiria Preserve, Peru.

Adult bluish-fronted jacamar, Galbula cyanescens, in a tree within the Pacaya Samiria Preserve, Peru.

Adult blue-headed parrot, Pionus menstruus, feeding in a tree within the Pacaya Samiria Preserve, Peru.

A view in Glacier Bay National Park and Preserve, UNESCO World Heritage Site, Southeast Alaska, United States of America, North America

The Little Teepees on the north side of Haystack Mesa in Petrified Forest National Park, Arizona, United States of America, North America

Male lesser goldfinch (Carduelis psaltria), Patagonia-Sonoita Creek Preserve, Patagonia, Arizona, United States of America, North America

Beaver (Castor canadensis) swimming with food, Denali National Park and Preserve, Alaska, United States of America, North America

Horse-eye jacks (Caranx latus), schooling in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Horse-eye jacks (Caranx latus), schooling in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse sharks (Ginglymostoma cirratum), being fed in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse sharks (Ginglymostoma cirratum), being fed in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse sharks (Ginglymostoma cirratum), being fed in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse sharks (Ginglymostoma cirratum), being fed in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse sharks (Ginglymostoma cirratum), being fed in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Mangrove snappers (Lutjanus griseus), schooling in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse sharks (Ginglymostoma cirratum), being fed in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse shark (Ginglymostoma cirratum), with boat in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse shark (Ginglymostoma cirratum), with boat in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse sharks (Ginglymostoma cirratum), massing in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse sharks (Ginglymostoma cirratum), massing in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse sharks (Ginglymostoma cirratum), massing in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse shark (Ginglymostoma cirratum), on the sand in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Nurse shark (Ginglymostoma cirratum), on the sand in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

A myriad of fish and coral underwater at Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

A myriad of fish and coral underwater at Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

A myriad of fish and coral underwater at Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

A myriad of fish and coral underwater at Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

A myriad of fish and coral underwater at Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

A myriad of fish and coral underwater at Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Rocky Coastline by the Atlantic Ocean, Dr. Bill Freedman Nature Preserve, Nature Conservancy of Canada, Nova Scotia, Canada, North America

Grizzly bear (brown bear) (Ursus arctos) at Crescent Lake, Lake Clark National Park and Preserve, Alaska, United States of America, North America

Stranded ice on the low tide in front of Lamplugh Glacier, Glacier Bay National Park and Preserve, Alaska, United States of America, North America

Meadow near Williams known as Sunflower Flat Wildlife Preserve, normally a wetland now dry due to Arizona's drought, Arizona, United States of America, North America

An adult Glittering-throated Emerald, Chionomesa fimbriata, on a tree in the Pacaya Samiria Preserve, Peru.

An adult collared trogon, Trogon collaris, perched during the day in a tree within the Pacaya Samiria Preserve, Peru.

An adult common potoo, Nyctibius griseus,perched during the day in a tree within the Pacaya Samiria Preserve, Peru.

Adult bluish-fronted jacamar, Galbula cyanescens, in a tree within the Pacaya Samiria Preserve, Peru.

An adult stork-billed kingfisher (Pelargopsis capensis), perched in Tangkoko National Preserve on Sulawesi Island, Indonesia, Southeast Asia, Asia

An island of rock just off the Billings Gap Trail at Petrified Forest National Park, Arizona, United States of America, North America

Rocky Coastline by the Atlantic Ocean, Dr. Bill Freedman Nature Preserve, Nature Conservancy of Canada, Nova Scotia, Canada, North America

The Cliff Palace Indian dwelling, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America

Giant saguaro cactus (Carnegiea gigantea) at night in the Sweetwater Preserve, Tucson, Arizona, United States of America, North America

Giant saguaro cactus (Carnegiea gigantea), at dawn in the Sweetwater Preserve, Tucson, Arizona, United States of America, North America

Sunrise on saguaro cactus in bloom (Carnegiea gigantea), Sweetwater Preserve, Tucson, Arizona, United States of America, North America

A young brown bear (Ursus arctos) with a dead salmon at Lake Clark National Park and Preserve, Alaska, United States of America, North America

Mount Foraker in the fall, Denali National Park and Preserve, Alaska, United States of America, North America

Rocky Coastline by the Atlantic Ocean, Dr. Bill Freedman Nature Preserve, Nature Conservancy of Canada, Nova Scotia, Canada, North America

Grizzly (brown) bear (Ursus arctos) at Crescent Lake, Lake Clark National Park and Preserve, Alaska, United States of America, North America

An adult brown bear (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

A tub full of green sea turtle hatchlings (Chelonia mydas), Tangkoko National Preserve on Sulawesi Island, Indonesia, Southeast Asia, Asia

A view of Tarr Inlet in Glacier Bay National Park and Preserve, UNESCO World Heritage Site, Southeast Alaska, United States of America, North America

Mojave National Preserve, Granite Mountains in background, California, United States of America, North America

Mount Redoubt and Crescent Lake, Lake Clark National Park and Preserve, Alaska, United States of America, North America

Rainbow over South Marble Island in Glacier Bay National Park and Preserve, Southeast Alaska, United States of America, North America

Mount McKinley in the fall, Denali National Park and Preserve, Alaska, United States of America, North America

Grizzly bear (Ursus arctos horribilis) (Coastal brown bear) sow and spring cub walking along a stream, Katmai National Park and Preserve, Alaska, United States of America, North America

Adult brown bears (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

A mother brown bear (Ursus arctos) with her cubs on the beach in Lake Clark National Park and Preserve, Alaska, United States of America, North America

A view of Johns Hopkins Glacier against the Fairweather Range in Glacier Bay National Park and Preserve, UNESCO World Heritage Site, Alaska, United States of America, North America

A view of Margerie Glacier against the Fairweather Range in Glacier Bay National Park and Preserve, UNESCO World Heritage Site, Alaska, United States of America, North America

Beaver (Castor canadensis) swimming, Denali National Park and Preserve, Alaska, United States of America, North America

Red squirrel (spruce squirrel) (Tamiasciurus hudsonicus) in a spruce tree, Denali National Park and Preserve, Alaska, United States of America, North America

Grizzly bear (Ursus arctos horribilis) (Coastal brown bear) cub, Katmai National Park and Preserve, Alaska, United States of America, North America

An adult brown bear (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

Sunset in Glacier Bay National Park and Preserve, Southeast Alaska, United States of America, North America

A trio of brown bears (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

The Cliff Palace Indian dwelling, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America

An adult brown bear (Ursus arctos) fishing for salmon at Brooks Falls, Katmai National Park and Preserve, Alaska, United States of America, North America

Female willow ptarmigan (Lagopus lagopus), Denali National Park and Preserve, Alaska, United States of America, North America