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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.
Periods are a natural, normal part of life, and many people around the world experience them. So let’s talk about why and how they happen.
If a living organism freezes, it can die. But by freezing living cells at just the right temperature, scientists can preserve living cells instead of killing them.
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 | Français
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 |…
Natural history museums may not come to life as they do in a Hollywood movie, but they do have some amazing stories. They also have all kinds of cool stuff that many of us never get to see. Paleontologist Richard Fortey talks about the life and some of the treasures hidden…
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.
How do animals keep warm when the temperatures drop? It is not like they can turn on heater or bundle up in a layers of warm clothes like humans do. Before you watch this video, try to think of ways animals might keep warm.
Cooperation is something that humans and animals are known to do. It turns out that the 30 trillion cells in our body also need to cooperate. Like some humans, there are cells that are cheaters when it comes to cooperation. They do not do their share of the work and cause a lot of other problems.…
Monster Maker
Build your own monster by decoding the monster genome in Monster Maker, a DNA game. It is not very different from what…
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…
Doctor Know
Play doctor in the 21st century! Practice modern medicine by examining all dimensions of the body, from organs to molecules, as…
Conserving Water
How can you save water? You might start by figuring out what uses the most water in your life. In this choice-…
Virtual Water Treatment Plant
Have you ever wondered where the water in your home, school, or businesses come from? In this virtual tour, explore…
Cell Size SIM
Certain cell types should have a general size and have proportionate parts. But what if those sizes and proportions are…
Venom!
The shape of a molecule is very important. It’s what makes it possible for proteins to interact with other parts of the cell. In…