Alligator swimming underwater

1600 × 1200

Bald Eagle Head — White, Serious, Photograph

1024 × 768

White horses in a field

1600 × 1200

Penguins on Iceberg — Blue, Cold

1280 × 1024

Layered Agate Geode

1024 × 768

Zebra Fur Pattern — Black

1280 × 1024

Two Alligators Underwater

1280 × 1024

Clouds over a desert landscape

1600 × 1200

Close-up of a Ground Squirrel — Brown

1920 × 1080

Hummingbird in Flight — Red, Calm

1024 × 870

Canada Goose Head

4272 × 2848

Green Frog on Lily Pad — Serene, Afternoon, Photograph, Lily Pad

1280 × 1024

Blue-footed Booby

1280 × 1024

Green Tree Snake

1280 × 1024

Butterfly with Patterned Wings — White

1280 × 1024

Butterfly with Eye Spots — Brown, Natural, Night

1280 × 1024

Leopard Resting in Tree — Brown, Calm, Afternoon, Photograph, Branch

800 × 600

Arctic Fox Running

1024 × 768

Whitebark Pine Trunks

1280 × 1024

Giraffe Skin Pattern — Brown

1024 × 768