Walnut tree bark

Underwater photo of coral reef

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

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

A big crowd on the beach

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

Lepomis, macrochirus, uploads

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

Water droplets on a water lily in a fish pond

Luke · 1600×1200

Adam Ponthieu Store-Big Bend Post Office 07

Patricia Duncan · 892×589

Adam Ponthieu Store-Big Bend Post Office 02

Patricia Duncan · 887×583

Adam Ponthieu Store-Big Bend Post Office 03

Patricia Duncan · 885×591

Technician with laptop working on server rack at NERSC

Derrick Coetzee from Berkeley, CA, USA · 4288×2848

Old Patent Office, model room - Washington, D.C.

Brady-Handy · 1674×1737

Mursten munkeforbandt

Ib Rasmussen · 1020×680