
Brown Bear and cubs
Katmai National Park, Alaska

Brown Bear fishing
Katmai National Park, Alaska

Scarlet Macaw
Scarlet Macaw (Ara macao), Costa Rica

Bald Eagle
bald eagle (Haliaeetus leucocephalus) landing in dead tree, Homer, Alaska

Brown Bear and cub
Katmai National Park, Alaska

Keel-billed Toucan
Costa Rica

Wolverine
Wolverine (Gulo gulo) in snow, Alaska

Scarlet Macaw
Scarlet Macaw (Ara macao), Costa Rica

Bald Eagles
Pair of Bald Eagles (Haliaeetus leucocephalus) wait out a snow storm, Alaska

Wolverine
Wolverine (Gulo gulo) in snow, Alaska

Red-eyed Tree Frog
Red-eyed Tree Frog (Agalychnis callidryas), Costa Rica

Brown Bears
Katmai National Park, Alaska

Red-legged Honeycreeper
Red-legged Honeycreeper (Cyanerpes cyaneus) on tree branch, Costa Rica

Snow Geese
Snow Geese (Anser caerulescens) flying at sunset in front of the Sutter Buttes, Grey Lodge Wildlife Refuge

Bald Eagle
Bald Eagles (Haliaeetus leucocephalus) fighting over Salmon, Alaska

Tropical Red-eyed Tree Frog
Tropical Red-eyed Tree Frog (Agalychnis callidryas) on Heliconia plant, Costa Rica

Green and Black Poison Dart Frog
Tropical Green and Black Poison Dart Frog (Dendrobates auratus) climbs wild ginger plant, Costa Rica

Sea Otter
Sea otter (Enhydra lutris) and pup, Elkhorn Slough, California

Immature Red-tailed Hawk
Immature Red-tailed Hawk (Buteo jamaicensis) and Epiphytes (air plants) in Cloud Forest, Costa Rica

Brown Bear and cub
Katmai National Park, Alaska

Humming bird
Costa Rica

Snow Geese
Snow Geese (Anser caerulescens) flying toward the rising full moon at Grey Lodge Wildlife Refuge, California

Bald Eagle
Bald Eagle (Haliaeetus leucocephalus) head shot, Alaska

Scarlet Macaw
Costa Rica

Tropical Red-eyed Tree Frog
Tropical Red-eyed Tree Frog (Agalychnis callidryas) on Heliconia plant , Costa Rica

Glass Frog
Glass Frog and eggs (Centrolenella fleischmanni) on leaf, Costa Rica

Monarch Butterfly
Monarch Butterfly (Danaus plexippus) on sunflower, California

Pale Swallowtail Butterfly
Pale Swallowtail Butterfly (Papilio eurymedon) on daisies, Nevada County, California

Resplendent Quetzal
Male Resplendent Quetzal (Pharomachrus mocinno) perched in cloud forest, Sevegre Mountains, Costa Rica

Brown Bear and cubs
Katmai National Park, Alaska

Bald Eagle
Bald Eagle (Haliaeetus leucocephalus) flying through snowstorm, Alaska

Caiman
Caiman swimming in water at Tortuguero National Park, Costa Rica

Lynx
Lynx (Lynx canadensis) in the snow, Alaska

Ladybug
Ladybug (Coccinella septempunctata) searches for aphids, Nevada County, California

Bald Eagle
Bald Eagles fighting over fish (Haliaeetus leucocephalus), Alaska

Bull Moose
Winter Bull Moose (Alces alces) eyes the camera before charging, Yellowstone National Park, Wyonming

Bald Eagle
Bald Eagle (Haliaeetus leucocephalus) in flight with Chilkat River in background , Haines, Alaska

American Bison
American Bison (Bison bison) grazing in the snow, Yellowstone National Park, Wyoming

Coyote
Coyote (Canis latrans) relaxes in the snow after feeding. Yellowstone National Park, Wyoming

Howler Monkey
Costa Rica

Humming bird
Costa Rica

Burrowing Owl and Jackrabbit
Burrowing Owl (Athene cunicularia) and Jackrabbit (Lepus californicus) check each other out, Sacramento Valley, California

Bald Eagles
Bald Eagles (Haliaeetus leucocephalus) fighting over Salmon, Alaska

Male Brown Throated Three-Toed Sloth
Male Brown Throated Three-Toed Sloth (Bradypus variegatus) in Cecropia tree, Costa Rica

Monarch butterflies
Monarch butterflies Danaus plexippus) gathered on a tree, Santa Cruz, California

Baby Leatherback Sea Turtles
Three baby Leatherback Sea Turtles (Dermochelys coriacea) heading for the ocean, Costa Rica

Tropical Red-eyed Tree Frog
Tropical Red-eyed Tree Frog (Agalychnis callidryas) on Heliconia plant , Costa Rica

Dall Sheep
Dall Sheep (Ovis dalli) with baby in the snow, Yukon Territory

American Crocodile
Costa Rica

Keel-billed toucan
Costa Rica

Brown Bear and boat
Katmai National Park, Alaska

Brown Bear and cub
Katmai National Park

Humming bird
Costa Rica

Yellow-legged honey creeper
Costa Rica

Bat
Costa Rica