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

We are often taught that germs are bad, but what if exposure to germs or other microorganisms has long-term positive effects? Recent studies show that certain microbes in our environment might actually offer a protective effect against Alzheimer’s Disease.

It's a gassy, microbe-filled world out there. How can we control or even use these gases for good? That's what Hinsby Cadillo-Quiroz is figuring out.

Not everyone has been on a hike and very few have hiked with a park ranger. Dr. Biology hikes South Mountain Park with not one but two park rangers. Park Rangers Liz Smith and Justin Olson are our guides for the 2.5 mile trip up Holbert Trail. This episode…

Tucked away inside steel-gray cabinets in the Life Sciences Building is a different kind of library known as the ASU herbarium. The stacks upon stacks of color-coded folders contain more than 210,000 plant specimens -- a kind of botanical history of Arizona and the world.

What is life and how do biologists decide if something is living or non-living? Dr. Biology visits with physicist Paul Davies and microbiologist Ferran Garcia-Pichel. They talk about life, extreme life forms (extremophiles), and the possibility of life on other…

So you think zombies are only on television and in the movies, think again. Dr. Biology learns the details of a nasty fungus and something called the "death grip" from biologist David Hughes. It turns out there are real live, well maybe not live, zombies. The good news is this…

Hacking is a word that is often tied to something bad. However, there are times when hacking can be for something good. Think of it as a tool that can be put to use for good or bad. We also think of hacking as something only done with computers, but can we hack other things? Dr. Biology has the…

An interview with taxonomist Diana Lipscomb from George Washington University. Dr. Biology dives into the mystery of the dying coral reefs. This is a hot topic in the marine biology world and one you are sure to learn a lot about these amazing organisms.
Zoomed in picture of grassbug

Ugly Bug Contest 2011

Ugly Bug Contest 2012

A snake in an underground burrow.

Desert Survivor

Play Desert Survivor

In this story-based game, you are a young rattlesnake learning to survive in a harsh desert environment. You'll search…

Microbes cartoon

Microbes

Microbes: The Good, the Bad, The Ugly takes you on comic book journey inside the human body where there are both good and bad bacteria and viruses.

Keys to the Ocean Taxonomy Game

Keys to the Ocean Game

Play the Keys to the Ocean Game

Our world is full of different plants, animals, bacteria, and other life. But how do we know which species is…

scorpion game

Venom!

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…

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'…

Solving mysteries illustration

Using the Scientific Method: The Case of the Mystery Images

Play The Case of the Mystery Images

Looking for another detective assignment? Practice all the new detective skills you learned in the…