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 ...

This is a cross section through the eyes of a harvestman – more commonly known as a daddy longlegs. This arachnid is often misidentified as a spider, but it belongs to its own biological order, ...

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 ...

The aphid in this image is cozying up in the so-called gall that it has forced a plant to grow around it, providing the insect with both protection and food. Get a closer view of the image Get a ...

Most cell structures are not visible to the naked eye without using stains for visualization. The stains used in these images highlight how cell biologists use tricks to “see the invisible.” Invite ...

Nope, this isn’t a small, prickly mammal with a flashy dye job, but a single intestinal epithelial cell. The colorful, hairlike structures are microvilli, which are designed to maximize the cell’s ...

Derek Sung is a physician-scientist, currently completing his residency in pathology; he lives in Philadelphia, Pennsylvania. He received his MD and PhD from the University of Pennsylvania. His ...

Take a visual journey through some of the major concepts in biology. These pathways to discovery were created by educators to help users explore various biological concepts. We would like to extend a ...

Nirmala Iyer, Research Specialist at HHMI's Janelia Research Campus.

Ellen Quarles, Imaging Application Specialist at HHMI's Janelia Research Campus.

Julien Resseguier is a group leader at the University of Oslo in Norway. He studies the spatial dynamics of immune responses and infections, with particular interest in the branchial cavity lymphoid ...

Activate students’ prior knowledge and surface questions by creating a K/W/L chart (what I know, what I want to know, and what I learned) about COVID-19 and SARS-CoV-2. Given that this is a deeply ...