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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.
Humans have evolved to work together, but it isn't always straightforward. Some people try to bend the rules, or cheat. Athena Aktipis studies what makes cooperation work, and why cheating sometimes backfires.

You know you're sick, but what might you have? Is it bacteria, fungi, or viruses that are causing your illness? Learn about the differences between these pathogens and about how certain medicines can treat some, but not others.Also in: Español

Elizabeth Pringle grew up in a family of biologists, but didn't think she would end up as a biologist until she fell in love with research.
March Madness in the past has been reserved for college basketball. But in 2013, biologist Katie Hinde and a group of scientists, writers, and other creative souls started the ultimate animal competition that expanded beyond humans – March Mammal Madness. Don’t worry, the competition is virtual. No…

Have you ever wondered how evolution operates at a cellular level? Dr. Biology has a conversation with evolutionary biologist William Ratcliff in an episode that investigates the process of how single cell mutations can make the leap to coordinated groups of cells and ultimately…

Going where no one has gone before sounds exciting, but are we ready to go to Mars? Traveling long distances, and living on another planet is going to be a challenge. You could say an extreme challenge because of the conditions in which we will have to live. Dr. Biology learns a bit about the…
Dr. Biology is out of the studio again and this time with his shoes off and inside the tiny, but powerful submarine named Alvin. He’s there to talk with the chief pilot of Alvin, Bruce Strickrott, about what it is like to explore the deep ocean. Listen in as we explore the living…
Dr biology looking at some ants

Collecting Ants

Read Collecting Ants and then take this quiz to test your knowledge!

Ugly Bug Contest 2008

The Ugly Bug Contest has been part of the Flagstaff Festival of Science and Mt. Campus Science Day since 1997. Ask A Biologist is pleased to extend the contest to the world via the Web.…

bee dance

Bee Waggle Dance Game

Play the Bee Dance Game

Did you know that honey bee workers tell their sisters where to find the best flowers and nectar with a dance? It is called…

Human skeleton game

Skeleton Viewer

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…

An illustration of different cell sizes and a ruler, to measure nuclear cytoplasmic ratios

Cell Size SIM

Play the Cell Size SIM

Certain cell types should have a general size and have proportionate parts. But what if those sizes and proportions are…

A colorful DNA helix, three Cas9 proteins, and a handful of florescent markers.

Cracking CRISPR

Play Cracking CRISPR

DNA is the key to life, so it's no wonder that we've been working to crack the code. With the tool CRISPR Cas9, we'…