Welcome to Ask A Biologist. This site has a large collection of biology learning materials that includes stories, games, activities, videos, and a podcast.

Explore the Skeleton Viewer

To explore the bones of the human skeleton, check out our Skeleton Viewer. Take a look further inside of a bone with our Bone Anatomy Viewer.

To learn more about bones, visit Busy Bones.

Nicholas Stephanopoulos works with tiny structures so small you can only see them by using powerful microscopes. Some might say he's a builder, but he actually gets the molecules to do the building themselves.

Growing cells outside our bodies in tiny plastic dishes might seem a bit complex. But scientists have been doing this for many years now. It has opened our eyes to the bustling life inside our tiny cells and has led to some life-saving technologies.

Explore Give It A Shot

As our lives become more affected by viruses and bacteria that cause disease, how much does wearing masks and distancing matter? How important is it to get vaccinated? Explore and visualize these questions as you figure out how you could slow a pandemic.

Learn more about vaccine history, testing, and more with our story, Vaccine Science.