During development, cells move around constantly. Often, specific cell types arise in one area of the developing organism but then need to migrate to another destination as the organism grows and ...

Every process has a beginning and end, but sometimes the middle segment is the most interesting. This is an image of a neural stem cell in the midst of the process of differentiating into a neuron. In ...

This image shows two different organisms, an alga and a plant, both of them intriguing to look at under a microscope. The rod-shaped creature is a type of alga called a desmid. It is set against the ...

In some cultures, a rabbit’s foot is thought to confer good luck. Here, however, you’re looking a a sample of a rabbit’s skin. Researchers have learned a great deal about rabbit skin by examining ...

This is the underside of a gecko, offering a great view of their incredible feet and toes, which allow them to climb on nearly any surface. Get a closer view of the image Get a closer view of the ...

What would you see if you peered inside a human small intestine? Here’s a glimpse at its structure, revealing a community of cells with different functions. A biopsy like this is generally very small ...

This time-lapse video shows the development of the nervous system in a fruit fly embryo as it transitions to the larval stage. Fruit flies have a high reproduction rate and a very short gestation ...

These dark blue tubes splattered with red and green are fruit fly muscles. This image shows where the nerves and the muscles meet in the larva of a fly. These dark blue tubes splattered with red and ...

Confetti mice are very useful in research because they allow scientists to track which cells produce which proteins based on their color under a fluorescent microscope. These mice are particularly ...

The ER is the protein synthesis and processing center of a cell and is also responsible for the synthesis of some lipids. There are two types of ER in a cell – rough ER and smooth ER – that together ...

Beauty is all around us. It is everywhere our eyes can see – in the breathtaking majesty of snowcapped mountains, in the tranquil shores of tropical beaches, and in the faces of those we love. But ...

The story of the cell cycle is often told only through the perspective of the chromosomes as they replicate and then divide. This resource beautifully illustrates the role of the cytoskeleton in that ...