This neon marvel highlights the muscles of a developing aquatic invertebrate known as a moss animal, also known as a bryozoan – a member of the phylum Bryozoa. The organism gets its common name from ...

What am I looking at? This is a single human hepatocyte. Its two nuclei are in blue (1). The other colors in this image are stains of the actin protein and are depth-coded, with red being the closest ...

This Malayan jungle nymph may look like a rather prickly character, but the species is actually a gentle giant. In fact, it’s one of the largest and heaviest insects in its family, weighing up to 65 ...

Unlike prokaryotic cells, all eukaryotic cells have nuclei. Nuclei house most of a cell’s genetic information – much of it in the form of DNA – making a nucleus a sort of blueprint for building future ...

This calleta silkmoth caterpillar is covered with spiked spheres all over the top and sides of its body; their purpose is to discourage predators. Native American tribes in the American southwest dry ...

Neurons are the main cells of the nervous system. They perform a wide array of complex functions in the body. To achieve this, neurons need to be able to make connections with other neurons. During ...

What am I looking at? These are cells derived from monkey kidney tissue, growing in culture. They were filmed at a very slow frame rate overnight, and you are seeing the video played back here at a ...

Filopodia are specialized structures that extend from the cell membrane to allow a cell to explore the environment around it. These thin protrusions are full of a protein called actin, which, in ...

Imagine living your life with a 10-foot–long straw fastened to your face, like this acorn weevil does. That protrusion, called a rostrum, is highly useful for the weevil, however, allowing it to feed ...

Skeletal muscle cells are long and thin and can contain multiple nuclei. These cells fuse end to end with their neighbors to form myotubes, which then collectively form muscle fibers. When bundled ...

Do you notice the tiny red-ringed dots in this image? Those little spots are HIV particles. They are concentrated on contact points in the brain between an infected immune cell and an uninfected ...

In this image, red is the color of absorption. The red cells in this image are enterocytes, which line the walls of your small intestine and are responsible for absorbing nutrients from the food you ...