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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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Growing cells outside our bodies in tiny plastic dishes might seem a bit complex. But scientists have been doing this for many years now. It has opened our eyes to the bustling life inside our tiny cells and has led to some life-saving technologies.

Africanized "killer" bees have fallen prey to a deadly predator of their own- parasitic mites whose infestation has dropped their wild colony numbers by as much as 70 percent statewide.

Ouch! You just got a paper cut on your finger. What happens now? Besides the sting you are feeling from the cut, there are germs on that paper that are preparing to invade your body. For your immune system, this means war.Also in: Türk

The taiga, or boreal forest, is the largest land biome in the world. It is deep and dark, often green, and always cold. But even in this frigid place, many animals and plants thrive.Also in: Español | Français |…

An interview with myrmecologist Rüdiger Wehner from University of Zurich. Listen in as Dr. Biology learns how these desert animals are revealing their success in the Sahara Desert. Don't know what a myrmecologist is? This is a good show to find the answer.

An interview with, biologist, movie maker, and Pulitzer Prize winning author Bert Hölldobler. Venture into the world filled with amazing facts and feats by an animal that will remain a mystery... at least until you listen to the clues at the beginning of this episode and make…

Building Your Own Ant Farm (Part 2 of 2). Ask A Biologist video with Dr. Biology and Rebecca Clark on how to build an ant farm with recycled CD cases. Watch part one.

So you think zombies are only on television and in the movies, think again. Dr. Biology learns the details of a nasty fungus and something called the "death grip" from biologist David Hughes. It turns out there are real live, well maybe not live, zombies. The good news is this…

Why do we have seasons?

Seasoned to the Tilt

Have you ever thought about your favorite season, and why it looks and feels the way it does? This activity will help you see and understand why Earth has seasons, and the two things that…

a sea urchin

Sea Urchins

Read Sea Urchins Do Research and then take this quiz to test your knowledge!

Drops of water

Heavy Water

This activity explores how the temperature of water affects its density. You will need to gather the following materials: a pencil; a small paper cup; a small-mouthed, clear-glass jar (the cup…

An illustration of different cell sizes and a ruler, to measure nuclear cytoplasmic ratios

Cell Size SIM

Play the Cell Size SIMCertain cell types should have a general size and have proportionate parts. But what if those sizes and proportions are different than…

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.

Pollen Gallery (Pollen up-close)

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

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.

Feather Zoom Gallery (Feathers up-close)

There is nothing like seeing a feather up close.

jigsaw sail boat

Why Are English Sailors Called Limeys?

Imagine you are on a sailing ship in 1747. You left England only a couple of months ago and you felt fine. Now you are so tired you can barely walk. Dr. Lind wants to discover what is causing…

Wordsearch | Crossword
Plants we use for medicine

Nature's Medicine

Medicinal plants come in all shapes and sizes. Probably some of the weeds growing in your yard, fields, or even cracks in your sidewalk are medicinal. Who knew there was a different kind of…

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Mouse and snail taxonomy

Linnaeus and the World of Taxonomy

Have you ever wondered how animals and plants get their names? People give them names, lots of different names! That was how it used to be before Carl Linnaeus created the world of taxonomy.…

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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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