Small metal object with a green and brown color on a white surface

Bee sitting atop a piece of paper with text and a barcode on it

Close up of a rock with a small insect on it

Close up of a brown elaterid beetle on a piece of paper

Brown and black butterfly perched atop a white surface

Black and white collage of four images of a piece of paper with holes…

Close up of a small brown and black trophozoite on a rock

Brown carpet beetle perched atop a piece of wood against a gray…

Two neaera circinata shells from the USNM 63961