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

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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…

Have you ever wished for a place on the Web where you could find quality science content that you can count on and trust? Your wish has been granted. Learn about the National Science Digital Library and all the projects and resources created just for science, technology, engineering and math. It…

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…

If you could travel back in time what would you find 50 million years ago? What was the climate like? Would you find the same plants? What animals were crawling, walking, and flying around? Paleoentomologist Bruce Archibald takes Dr. Biology back in time to explore the planet…

Have you ever wished for a place on the Web where you could find quality science content that you can count on and trust? Your wish has been granted. Learn about the National Science Digital Library and all the projects and resources created just for science, technology, engineering and math. It…

An interview with biologist Doug Lake from the Arizona State University School of Life Sciences. Dr. Biology and his co-host Ramon Santos find out how something as simple as a paper cut can put our body defense to work.

Love them or hate them, something is going on with male crickets on the island of Kauai. Once evenings filled with a chorus of these tiny singers has become strangely silent. Dr. Biology talks with biologist Marlene Zuk about how things are changing fast – maybe the fastest…

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 animals.
Cartoon of two scientists one male and one female.

Doctor Know

Play Doctor KnowPlay doctor in the 21st century! Practice modern medicine by examining all dimensions of the body, from organs to molecules, as an…
Human skeleton game

Skeleton Viewer

Explore the Skeleton ViewerTo explore the bones of the human skeleton, check out our Skeleton Viewer. Take a look further inside of a bone with our…
Body Depot

Body Depot

Body Depot is a collection of activities and materials created in collaboration with with the Arizona Science Center. The Body Depot includes activities on DNA, proteins, bones, immune function…

Bone Zoom Gallery (Up-close Inside Bones)

Take a look at the microscopic world of bone in our virtual bone histology lab. Just pick a microscope slide from below and click on it to view under the virtual microscope.

Plankton Zoom Gallery (Plankton up-close)

Plankton comes in many shapes and sizes. These are just a few of the thousands of examples.

Pollen Gallery (Pollen up-close)

Pollen comes in many shapes and sizes. These are just a few of the thousands of examples.

Tiger Beetle Zoom Gallery (Up-close with tiger beetles)

Some of the fastest animals on Earth are below. That’s right, if these tiny insects were as large as a horse they would be running 200 miles an hour.

Saguaro

Sonoran CSI

Little water, sweaty, hot summer days and frigid winter nights make the desert an uninviting place for most animals and plants. But hiding just below the surface, the desert is alive with…

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Nerve impulse thumbnail

A Nervous Journey

Let’s take a ride. It is going to be a fast one, so be prepared. Where are we going? We are going to start at your head and end up at your toes. It may not seem like a long trip, but it is…

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Building Blocks of Life Illustration

Building Blocks of Life

All living beings are made up of cells. Some of them are made up of only one cell and others have many cells. Also in: Español |…

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Monarch butterfly puzzle

Migrating Monarchs

Thousands of orange and black shapes flutter through the trees. Welcome to one of the few wintering homes of the monarch butterfly. Also in: Español…

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