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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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Almost all life forms start out as small cells, but how do they grow into entire animals? Read about the first step here: when cells in an embryo form germ layers that give rise to every organ and tissue in the body.

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…

If you are a tobacco plant, you have a bad reputation. The link to cancer and other health related diseases is cause for any person to avoid you. But there is another side to this plant. Dr. Biology sits down with biologist Charlie Arntzen to talk about how tobacco plants are…

If you spend some time hiking around the American Southwest, you might be lucky enough to spot a Gila monster. But you probably won't see one climbing a tree.

Robert Page's journey is as captivating as the creatures he studies. From his early fascination with entomology to his experiences in the Vietnam War and his parallel passion for photography, his journey is a rich tapestry of experiences. We chat about the contributions he…

Dr. Biology has a chance to learn some interesting things about exploring for new species from biologists Vicki Funk and Richard Pyle from the Smithsonian Institute and the Bishop Museum. This episode might just put the explorer bug into your head.
Feeling stressed out? Wonder what stress is or how to best to deal with stress? Then you might like to listen in as Dr. Biology talks with Miles Orchinik, Associate Professor in the School of Life Sciences at Arizona State University, about his work on stress.
There is an endless march going on in the rainforest, as tiny farmers collect food to bring back to their fungus. Join us in the rainforests of Panama as we take a closer look at the life of the leafcutter ant.
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…

Learn about the peppered moth

Picking off the Peppered Moth

Play the Peppered Moths GameGet your beaks ready, it's moth-hunting time. In the Peppered Moths Game, you take on the role of the hunter and learn at…

Pollen Gallery (Pollen up-close)

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

Plankton Zoom Gallery (Plankton up-close)

Plankton 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.

Ant Gallery (Get up-close to ants)

Now is the time to check out these amazing animals from the safety of your own computer.

Tree lizard puzzle

Mighty Morphing Tree Lizards

Biologists at Arizona State University hope that by learning more about animal behavior, they will also be able to understand why people act the way they do. Also in:…

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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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Birds and their Songs

Birds and Their Songs

We see them practically everywhere. They are found flying in the high mountains and soaring along the thermal winds in the low deserts. There are those that are reclusive and others you can…

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Pollen close up

Pollen - Nature's Tiny Clues

Most might be surprised that pollen is being used to catch thieves, illegal drug dealers, murders, terrorists, and even catching those who commit less visible crimes such as making and selling…

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