Black and white drawing of a sword on a piece of paper

Small piece of paper with a QR code on it next to a box of shells

Drawing of a man and a woman in a wooded area

Black and white photo of a ctenophore

Close up of a small insect on a rock

Drawing of a human heart and vascular system on a piece of paper

Close up of a plant with green leaves and brown spots on it

Close up of a plant with green leaves and brown spots on it

Small plant with green leaves growing out of a rock wall