Exploring the onion skin, leaves, and fleshy scales through a microscope.

A scanning electron microscope reveals nematodes (highlighted in green) inside the spongy mesophyll of a European beech (Fagus sylvatica) leaf infected with beech leaf disease (BLD). Eggs are marked ...

A close-look of a red aglaonema leaf under a microscope.

A lotus grows in ponds and lakes where the water can be brown with silt, algae, and decaying plants. Yet the leaves often look freshly washed. Water beads up, r ...

A microscope image shows the surface of a Kapur Paya fossil leaf. Tiny pores called stomata and the outer skin cells of the leaf are visible, which helps scientists compare it to living trees. Credit ...