Photomicrograph of a semithin section of a termite's gut stained with haematoxylin and eosin. The gut appears to be packed with Trichonympha - a genus of protists found in the gut of many termite spec...

The developing wing bud of a four day chick embryo showing the pattern of spinal nerves growing into it. The nerves are made visible by staining a specific neural protein (3AIO monoclonal antibody, wh...

This light micrograph of a section through a teasel bud shows a complex pattern controlled by the same family of genes that controls the layout of animal and human bodies as well. Teasels are thistle...

Light micrograph of elastic cartilage of the ear. This type of cartilage is made from a protein called elastin and is formed from a network of elastic fibers and collagen. The fibers form bundles whic...

Light micrograph of human ovum (egg) and sperm. The ovum is much larger than the sperm and is surrounded by protective cumulus cells around the outside surface (yellow). The membrane surrounding the o...

Light micrograph of elastic cartilage of the ear. This is a type of cartilage (connective tissue) that is present in the outer ear. It contains a network of collagen and elastin fibers, which gives it...

Brightfield micrograph of a living diatom (Mediopyxis helysia) showing the cell nuclei and golden chloroplasts. There is a bacteria colony in mucilage located on the top of the diatom. The image won ...

Shown is a hematoxylin and eosin stained section through a plasmablastic lymphoma of the oral cavity in an HIV-positive adult male. There is a diffuse proliferation of large neoplastic cells most of w...

Time series of cooled CCD fluorescence micrographs of live amoeba syringe-loaded with Rho-N58C-PII. See publication below for details. Live cells were observed with a Zeiss Axiovert 135 fluorescence m...

Light micrograph of a section cut through the dermis of the scalp. The dermis is the lower (or innermost) layer of the that makes up the skin; the other layer is the epidermis. The dermis contains hai...