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

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…
Battling bacteria can be tough, as they can evolve quickly and resist many of our treatments. But Shelley Haydel is working on new ways to fight bad bacteria.
Doctors place Intrauterine Devices (IUD) in the bodies of some females to help prevent pregnancy. Learn about how these devices work and how long they’ve been around.

Did you ever wonder why you see the colors you do or if other animals see the same colors that you see? We see light that bounces off of things around us. When the light enters our eyes, special cells tell our brains about the light. Also in: Français…

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.
In this program we talk a lot about cells. In particular plant, animal, and microbial cells. But did you know there is a world of microbes that make their home inside and on our bodies? Before you start to worry, you need to know most of these microbes are important for us to live. In fact, without…
Tune in and get turned on to the world of tiger beetles! Dr. Biology chats with biologist David Pearson about these colorful sprinters that are not only fun to watch but also important “bioindicators” that help scientists understand the health of habitats. You’ll discover how tiger…

What happens when you mix part Robinson Crusoe and Swiss Family Robinson with biology? You get an adventure that has filled many lifetimes (bird lifetimes). Dr. Biology had the opportunity to sit down with Peter and Rosemary Grant to talk about the more than 30 years…

A cartoon illustration of a mosquito biting human skin

Epic Mosquito Quest

Play Epic Mosquito Quest

Mosquitoes go beyond annoying, to being downright dangerous at times. How can you reduce the number of mosquitoes around your home, to…

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…

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…

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…

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…

Comparative physiology game

Frankenstein's Lab

Play Frankenstein's Lab

Dr. Frankenstein needs your help to learn about how the bodies of different animals work! Build your own creature from 3…