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

Deserts can be a bit of a mystery--we picture them as hot, barren places, but that's not always true. Deserts are found in both the hottest and coldest places on Earth, and some of them have lots of plant and animal life, you just need to know where to look to find it.Also in:…

Some people gaze out at the landscape and see plants. Associate Professor Kathleen Pigg of Arizona State University sees the latest chapter in a long story.

An imaginary conversation between two great thinkers, Charles Darwin and Gregor Mendel. While the monk, Mendel, had read Darwin’s publications - Mendel's work only came to be known later. We can only imagine what the two might have talked about.

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.
An interview with biophysicistGerry McDermott of the National Center for X-ray Tomography. Dr. Biology tours the synchrotron that is also called the giant monster. Dr. Biology learns how the football sized facility is used to power a new kind of microscope.
Dr. Biology gets the skinny on our largest organ - our skin. Professor and author Nina Jablonski talks about the important ways our skin works for us each day.

These fluttering icons of North America are a favorite of many people across the world, but they may be having some population problems. Don’t worry though, there are ways you can help. Conservation specialist Gail Morris talks with our student guest host Kayna Lantz…

An interview with biologist Raul Gutierrez. Dr. Biology and his co-host Taylor Cheatham learn about some very cool desert plants and some non-desert plants that are just wicked.
a time machine with plants on it

Seeds

Read Time Traveling Plants and then take this quiz to test your knowledge!

Salt versus Fresh water Ice

When Water Gets Icy

In this experiment, we will look at one major difference between frozen freshwater and frozen saltwater.

An illustration of DNA-themed award winners

DNA Discovery Awards

Let's take a dive into the history of genetics research... and see who helped build the foundations of knowledge that we still build new understanding on top of today.
Can you see DNA?

Seeing DNA

Every living thing uses DNA as the instructions for life. But how can we be sure that something so small is actually there at all? Here is one experiment that you can do at home or school that…

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…

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…

EcoChains logo, a polar bear over an iceberg with text below that says EcoChains.

EcoChains: Arctic Futures

Play EcoChains: Arctic Futures

EcoChains: Arctic Futures is a game that introduces you to arctic life and ice that is so very important for survival.…

A pipe filling a glass of dirty water with an arrow to another pipe filling a glass with clean water.

Water Treatment Facility Game

Play Water Treatment Facility Game

Build your own water treatment plant by placing the cleaning steps in the correct order! Learn how each…