FOTCIENCIA aims to bring science and technology closer to society through scientific photography with the publication of a catalog and the production of an exhibition that will visit around twenty locations throughout Spain.
This picture taken by Guadalupe shows a cryosection of the retina of a bird, the timor zebra diamond, where the presence of photoreceptors (in green) has been revealed through immunohistochemical techniques, which allow us to see the colors of the world (cones) or visualize objects in low light (rods). In red, the outer segments of the photoreceptors are marked, which contain different pigments that vary from one class of vertebrates to another. In blue, the nuclei of all the cell types that make up the retina are marked, thus giving a view of the location of the photoreceptors in the tissue.
