Welcome to Ask A Biologist. This site has a large collection of biology learning materials that includes stories, games, activities, videos, and a podcast.

We hear the word ecosystems in the news and at school but just what are ecosystems? It turns out there are lots of ecosystems. You might even learn you have some inside you! Also in: Français | Español…

By the time the first endangered species list was made, many species had already gone extinct.  Some species, like whooping cranes, were almost extinct at that time.  But the US government did not begin to protect animals as endangered species until they were put on the official…

Most people have just one set of DNA throughout their body. But what happens to humans who are born with two sets?
Our biological sex affects the way we look in some obvious ways, like deciding what body parts we are born with. But, it also has effects on a range of other sexual traits that you might not expect.

The race is on. It is one where biologists and citizen scientists are working as quickly as possible to find and identify all the species on Earth before some go extinct. It might not seem like an important race, but we learn from entomologist Kelly Miller that not knowing what…

No, that is not a typo in the episode title. My guests today are collaborating on the study of animal movement, including humans. Both researchers use tools to document and analyze movement in animals. One tool is a symbolic language that has been in use since 1928 and the other is a new…

Love them or hate them, something is going on with male crickets on the island of Kauai. Once evenings filled with a chorus of these tiny singers has become strangely silent. Dr. Biology talks with biologist Marlene Zuk about how things are changing fast – maybe the fastest…

An interview with microbiologist Shelley Haydel from the School of Life Sciences and the Biodesign Institute at Arizona State University by co-host Marissa Henderson. This episode gives you something to think about when it comes to mud and why we say science is…
A world with some climate changes

Crazy Climate

Read Crazy Climate and Wacky Weather and then take this quiz to test your knowledge!

Keys to the Ocean Taxonomy Game

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…

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…

Solving mysteries illustration

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…

Four potential viruses that can be used in the game

Give It A Shot

Explore Give It A Shot

As our lives become more affected by viruses and bacteria that cause disease, how much does wearing masks and…

A colorful DNA helix, three Cas9 proteins, and a handful of florescent markers.

Cracking CRISPR

Play Cracking CRISPR

DNA is the key to life, so it's no wonder that we've been working to crack the code. With the tool CRISPR Cas9, we'…

Nano building game

Nano Building

Play the Bionanoengineering Game

Basic building patterns can be used to think about how technologies are built at the nano-scale. Try your hand…