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

Germs are tiny organisms that can make you feel sick and cause disease. During this activity you will illustrate the steps germs take during transmission. You will learn about the different types of bacteria, how they are spread, and discuss ways to keep from getting sick.

While our water may look crystal clear, there are actually countless microbes that live in it. Kerry Hamilton is working to find the bad bacteria in our water and to learn how we can manage these organisms.

Knowing when you are sick and what illness you have is the first step to helping your body fight back. Immunologist Douglas Lake gets to design and build tests that can tell us what virus we have, or how well our body is fighting it.

Science is full of mysteries and unknowns waiting for you to discover. Beyond their usual research, there have been some unusual things happening in Dr. Biology's laboratory and they need your help. It is up to you to uncover what is happening.