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

Microbes are all around us, and some have the power to hurt or to help. Rosa Krajmalnik-Brown studies the ability of microbes to help, whether deep in our guts or in the environment.Also in: Español
Have you ever wondered why some twins look so alike and other siblings may not? Let’s explore how twins form in the womb and how they may grow up to be similar or different.
Nicholas Stephanopoulos works with tiny structures so small you can only see them by using powerful microscopes. Some might say he's a builder, but he actually gets the molecules to do the building themselves.

Every year billions of babies are dried and buried, not to be unburied for weeks, months, years or even decades. Don't worry, these are not babies like your little brother or sister, these are baby plants, or as you might call them, seeds. Why would a mom do such a thing? Also in:…

Summer ice. Besides being cold and hard, it turns out to be critical for life on Earth. But what is it about this ice that makes it more important than other ice? Dr. Biology sits down with scientist Stephanie Pfirman to talk about summer ice and how the amount we see is shrinking…

Three inquisitive young co-hosts, Stephanie Galindo, Anthony Delgado and Raenesha Willis visit with biologist and microscopist Page Baluch. Together with Dr. Biology they explore the tiny world of inner space and learn that…

Imagine a world where animals have the capacity to show their natural behaviors and even engineer their own environments. For this episode, we're thrilled to have Danielle Wong, the Behavioral Enrichment and Animal Welfare Coordinator at the…

Giant beetles, flying treadmills, oxygen and prehistoric insects are just a few of the things that Dr. Biology learns about when visiting with biologist Jon Harrison.

A couple ants below some leaves

Ant Anatomy

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

some crystals of different colors with microscopic life on them

X-ray Crystallography

Read Making Life Crystal Clear and then take this quiz to test your knowledge!

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…

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…

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 clean glass of water with sparkles around it.

Water Activities Central

Visit Water Activities Central

Water is an essential part of our lives. It keeps us alive, helps to grow our food, helps keep our…