Most of us don’t think of the sewers as an exciting place. But these and other waterways are where Rolf Halden is finding and solving many mysteries.
Ask A Biologist
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 COVID SIM.
In the COVID-19 pandemic, how much does wearing masks and distancing matter? How important is it to get vaccinated? You can now explore and visualize these questions as you figure out how you could slow the pandemic.
To learn the latest about the COVID vaccines, the number of people who have been vaccinated, and more, visit our story page COVID-19 Vaccines.
Also in: Español
Play the Venom! Game
The shape of a molecule is very important. It’s what makes it possible for proteins to interact with other parts of the cell. In this invader game, you will defend the cells of the body against molecules of scorpion venom using antivenom.
To learn more, visit our story, Venom!
Mutations can change how genes work and produce big changes in our bodies. Kerry Geiler-Samerotte is tracking how mutations affect cells at the microscopic level.