Black and white photo of a shoe with a number on it

Close up of a plant in the water with green leaves and stems

Small tumbleweed plant sitting atop a rocky hillside

Close up of a microscope image of a group of protozoan

Small plant with yellow flowers growing out of the ground surrounded…

Box containing two pieces of rock

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

Close up of a rattlesnake plantain

Close up of a plastic container filled with green algae