Underwater image of a brook trout fish (cropped)

Brook trout swims in native stream underwater fish image (cropped)

Eric Engbretson, U.S. Fish and Wildlife Service · 2619×1900

Brook trout swims in native stream underwater fish image

Eric Engbretson, U.S. Fish and Wildlife Service · 3975×2642

Underwater photo of coral reef

Jerry Reid, U.S. Fish and Wildlife Service · 3593×2400

Walnut tree bark

Titus Tscharntke · 1500×1200

Bees pollen insects wings macro bugs

Jon Sullivan · 960×1280

A big crowd on the beach

Maxfield Barbara, U.S. Fish and Wildlife Service · 3456×2304

Bark tropical tree

Gregory Schick aka leadgolem · 2048×1536

Lepomis, macrochirus, uploads

Tetzner Tom, U.S. Fish and Wildlife Service · 1500×1125

Bumblebee macro insect

Iwan Gabovitch · 2592×1944

Cat domestic (undated photo; 2013 upload; cropped 2022)

Rosendahl · 768×768

Veiny leaf

Leon Brooks · 2560×1920

Cat domestic

Rosendahl · 1280×960