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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.
As you go about your day, breathing and thinking, with your heart beating, your body is working. It sends and receives signals, grows, and stores fat, among hundreds of other functions. All of these functions make up your physiology, or how your body works. The same is true for every living…
What is life and how do biologists decide if something is living or non-living? Dr. Biology visits with physicist Paul Davies and microbiologist Ferran Garcia-Pichel. They talk about life, extreme life forms (extremophiles), and the possibility of life on other…
What life lies below the surface of the water? A question that marine biologist Susanne Neuer has been studying since her childhood days. Now it is a career that she loves.
Tardigrades are some of the toughest animals on earth. They can survive freezing, drying up, radiation, and space, all while being smaller than the tip of a pencil.
Microbes are everywhere, but what are they? We get the inside story from microbiologist Valerie Stout about these tiny life forms including a slimy and gooey material many microbes make called biofilms. In fact, you have a daily encounter with biofilms and bacteria that can…
What could possibly be the difference between a cup of dirt and a cup of soil? Dr. Biology talks with microbiologist Ferran Garcia-Pichel about why he avoids the dirty word and prefers to say soil. Could it be there is more in a cup of dirt - excuse me a cup of soil than meets…
Remember your last paper cut, or the bad cold that had you coughing and blowing your nose? It was your immune system that was busy trying to make you better by battling the bacteria or virus that was attacking your body. How your immune system works is the discussion Dr. Biology has with…
Dr. Biology continues his conversation with biologist Ed Wilson. Just what does it take to be a great scientist? What would he do to encourage students to become scientists? These are just a few of the things we learn in this show as well as what Ed Wilson would do or be if he…
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…
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…
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.
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.
Secrets of a Superorganism
Ants are everywhere - they thrive in forests, fields, deserts, and cities all over earth. But what is the secret behind their success? Like humans, ants are social. They live and work together…
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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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Crazy Climate and Wacky Weather
Climate is a hot topic in the news and on internet websites and blogs. But what exactly is climate? And how do we know it is changing?Also in: …
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Darwin and Mendel's Afternoon Tea
An imaginary conversation between two great thinkers, Charles Darwin and Gregor Mendel. While the monk, Mendel, had read Darwin’s publications - Mendel's work only came to be known later. We…
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