Black and white drawing of an ornate frame with a bird perched atop it

Animated molecular model of a peptide molecule with red

Drawing of a purple flower with green leaves on a white background

Black and white photo of three silver coins on a white surface

Black and white drawing of a woman with a snake coiled around her neck

Yucca plant in the middle of a desert

Black beetle perched atop a rock

Close up of a microscope image of a group of small brown algae

Close up of a Japanese black pine tree with its lush green needles…