Group of small shells sitting on top of a piece of paper with some…

Black and white drawing of a cityscape with trees

Two women sitting at a desk in front of a computer

Black and white photo of a freight car on the railway track

Molecular model of a peptide molecule on a white background

Close up of a rock with a small hole in it

Close up of a bald-faced hornet on a white background

Honey bee on a white surface with a barcode and text on the right side

Open book with a pattern on it sitting on top of a white surface