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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.
Lakes, ponds, streams, and rivers are all sources of freshwater. But there is a lot less freshwater on earth than you might think. Fall into freshwater with us to learn some new things about this near-saltless water biome.Also in: Español |…
If the world of fashion were to choose the most fabulously colored animals they would likely decide upon butterflies and birds. These animal fashion statements are well known to most people, but what is less clear is how and why these bright colors have evolved in the animal world.
Have you ever noticed that most people do not drink alcohol while pregnant? Let’s learn about why doing that is so important.
Welcome to an exciting journey that takes you through the wild and fascinating world of zoos. Our guest for this episode is none other than Bert Castro, the President and Chief Exective Officer of the Arizona Center for Nature Conservation.…
This is the story of wild rabbits, humans, and a virus that might lead to a treatment for cancer. It is also a lesson about learning from history and how a virus that is deadly to some rabbits could become a new cancer-fighting tool for humans. Twice humans moved wild rabbits from Europe to other…
There is more to our memory than you might think. In fact, we have three types of memory. Just how these memory systems work, and work together is the subject of this episode. We also learn that there are sometimes errors in our memory. Take a few minutes to learn how we remember things and even…
An interview with cellular researcher and explorer Carolyn Larabell of the National Center for X-ray Tomography. Dr. Biology learns about the new microscope being developed to see inside cells in a way never before possible.
Not everyone has been on a hike and very few have hiked with a park ranger. Dr. Biology hikes South Mountain Park with not one but two park rangers. Park Rangers Liz Smith and Justin Olson are our guides for the 2.5 mile trip up Holbert Trail. This episode…
When Water Gets Icy
In this experiment, we will look at one major difference between frozen freshwater and frozen saltwater.
Using the Scientific Method: The Case of the Mystery Images
Play The Case of the Mystery Images
Looking for another detective assignment? Practice all the new detective skills you learned in the…
Mysterious World of Dr. Biology
Science is full of mysteries and unknowns waiting for you to discover. Beyond their usual research, there have been some unusual things happening in Dr. Biology's laboratory and they need your…
Seeing DNA
Every living thing uses DNA as the instructions for life. But how can we be sure that something so small is actually there at all? Here is one experiment that you can do at home or school that…
Cell Size SIM
Certain cell types should have a general size and have proportionate parts. But what if those sizes and proportions are…
Virtual Reality Tours of Biology
See the world of biology through virtual tours. Visit different environments, travel through…
Keys to the Ocean Game
Play the Keys to the Ocean Game
Our world is full of different plants, animals, bacteria, and other life. But how do we know which species is…
Beat the Heat
Staying safe in the heat is more than just a game, it can be a life saver. Luckily, you can see if you have what it takes to…