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

When you visit a pond or the beach, what kinds of living things do you see in the water? Depending on the environment, you might find fish, frogs, crabs, insects, seaweed, or lily pads. Don’t let your eyes fool you, though… there’s a hidden world in water full of creatures too small to be…

Periods are a natural, normal part of life, and many people around the world experience them. So let’s talk about why and how they happen.
Fascinating and bizarre interactions control the world around us, at a scale too small to see—the nanoscale. By studying the nanoworld, we can create nanomachines that mimic nature.Also in: Italiano | عربى…

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.

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…

There is more to our memory than you might think. In fact, we have three types of memory. Just how these memory systems work, and work together is the subject of this episode. We also learn that there are sometimes errors in our memory. Take a few minutes to learn how we remember things and even…

An interview with mathematicians Cassie Pawling and Genevieve Toutain from the ASU Department of Mathematics and Statistics. A show filled with fun math tricks and even a bit of mind boggling mind reading.
An interview with physicist Peter Vukusic. Dr. Biology gets the inside story about iridescent color, the science behind it, and believe it or not a link between science, surfing and snowboarding that you may not thought about.
some ants doing the word "supero"

Superorganism

Read Secrets of a Superorganism and then take this quiz to test your knowledge!

hand bones

Busy Bones

Explore the Bone Anatomy Viewer

Ever wonder what’s inside your bones? Here’s your chance to find out! Dissect a virtual bone and learn…

A logo with a brightly colored coral and the letters EcoChains below it.

EcoChains: Coral Futures

EcoChains: Coral Futures

In EcoChains: Coral Futures, your mission is to build and protect a thriving coral reef ecosystem. You’ll build your reef…

Monster game

Monster Maker

Play Monster Maker

Build your own monster by decoding the monster genome in Monster Maker, a DNA game. It is not very different from what…

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…

Four mini-illustrations of a water bottle, the sun, a child, and sun protective wear (hat, glasses, and light t-shirt)

Beat the Heat

Play Beat the Heat

Staying safe in the heat is more than just a game, it can be a life saver. Luckily, you can see if you have what it takes to…