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 ...

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 ...

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 ...

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 ...

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 ...

What am I looking at? This is an electron microscopy image of a mouse tooth that has been briefly exposed to acid, revealing the structure of the enamel. Biology in the background Brushing your teeth ...

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 ...

We mainly curse mucus as we are blowing it from our noses or coughing it up from our lungs because of some allergy or ailment. However, mucus plays a key role in defending our bodies from illness.

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 ...

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 ...

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 ...

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 ...