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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It's a mystery, at least until you try to guess what animal children book author Conrad Storad is describing at the beginning of this episode. Joining Conrad is physiologist Michael Quinlan. Together they give us all the gory details behind this desert dwelling…

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…

Is there any way to prevent pregnancy after sexual intercourse? Learn about Plan B, an emergency contraceptive.

If you spend some time hiking around the American Southwest, you might be lucky enough to spot a Gila monster. But you probably won't see one climbing a tree.

Part of what makes science fun and challenging is solving puzzles and investigating mysteries. For this episode, Dr. Biology sits down with ecologist Charles Brown and the two talk about his 40-year journey of discovery and rediscovery. This is a curious story that involves an…

What can evolution teach us about getting sick and how do we make use of what we are learning? Dr. Biology gets over a cold while visiting with Randy Nesse, Founding Director of the ASU Center for Evolution & Medicine. The two talk about why we get sick and some of the…

What does it take to attract a mate? For some animals it requires some push-ups. Other animals have a dance. And in both cases showing off some color is important. Dr. Biology catches up with biologist David Clark to learn more about his lizards and the robot lizards he has built…

Here is something special you can add to your trick-or-treating this year. Find out if there are vampire bats waiting to drink your blood - or if we really have a funny bone in our body? These are just a few of the things Dr. Biology and his guests Rebecca Fisher and

a cartoon of a lake

Freshwater Biome

Read Falling into Freshwater and then take this quiz to test your knowledge!

some ants carrying puzzle pieces with food on them

Ants

Read Ants and then take this quiz to test your knowledge!

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…

Plankton Zoom Gallery (Plankton up-close)

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

Ant Gallery (Get up-close to ants)

Now is the time to check out these amazing animals from the safety of your own computer.

Pollen Gallery (Pollen up-close)

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

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.

Tree lizard puzzle

Mighty Morphing Tree Lizards

Biologists at Arizona State University hope that by learning more about animal behavior, they will also be able to understand why people act the way they do. Also in:…

Wordsearch | Crossword

Big Bad Beetles

A story of blood, love, and family… Learn about one of the biggest and fanciest blister beetles anywhere. This species goes by the scientific name of Lytta magister but has also been called the…

Wordsearch | Crossword
Girl inspecting ecosystems

I Spy an Ecosystem

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:…

Wordsearch | Crossword
Itty Bitty Beasts

Itty Bitty Beasts

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.

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