Gold and enamel pendant with a depiction of a man holding a bird in…

Poster with text and logos on a black background

Diagram of a trimmeric g-protein molecule

Coin with a ruler next to it on a white surface

Small metal object with a hole in the middle of it

Rough-legged hawk perched atop a tree branch against a backdrop of a…

Common goldeneye

River with clear water and rocks in the background

Close up of a plant with green leaves and dry grass on the ground