On the left are two healthy vertebral bodies in the spine of a medaka fish. The bone matrix (green) is normally mineralized and surrounded by bone-forming cells (magenta). On the right, we can see the situation in an osteoporotic fish.

A colorized scanning electron micrograph of a cultured human neuron.

This image was taken in relation to a study in which a new method for identifying strains of bacteria and guessing their resistance to antibiotics used an AI model to analyze their growth dynamics in culture.

This is a microscopic image of spores of Tuber luomae, a truffle species recently described by Oregon State University researchers.

This image shows the morphology of a fibroblast with no actomyosin contractility.

This image shows a tetraploid RPE-1 mitotic cell.

This is an image of a three-dimensional culture of human breast cancer cells.

This microscopic image shows stem cells in young (left) and old (right) airways with cell nuclei seen in blue, airway basal stem cells seen in red and ciliated cells seen in green.

A medical illustration of drug-resistant Mycobacterium tuberculosis bacteria.

A single-letter DNA change in a gene that lays down the pattern for a developing spine in zebrafish caused mutant fish to develop backbones that resemble ancestral fish (bottom image).