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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.

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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.

Humans and insects have more in common than you might think. We share a broad range of similarities, covering everything from muscle and nerve structures to the ways our cells communicate.

Changing careers can be a challenge. It can also be rewarding. And for some people it is an opportunity to fulfill a childhood dream. This is the case for John Truong who has been an artist and animator on some of the popular movies produced by Pixar, DreamWorks, and Disney. While…
How are some animals keeping cool and staying warm? Listen in as Dr. Biology talks with biologist Dale DeNardo and engineer and thermographic artist Arno Vlooswijk about thermoregulation. Could there be lessons for humans to learn from these animals?
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…
What animal runs so fast that it temporarily goes blind? It turns out that these tiny insects are fast, but don't have enough brain power to keep up with their speed. Learn more about these tiny tigers in this video.

A city saved and thanks to a last minute 100 Ugly Bug Contest votes, an amazing win for the Astonishing Treehopper.

Biologist Bruce Hammock talks about life as a biologist, being a businessman and mountain climbing. How do these all fit together? Listen in as Dr. Biology learns how these pieces all work together in an interesting career.

a cartoon of the temperate forest

Temperate Forest

Read Taking in the Temperate Forest and then take this quiz to test your knowledge!

Dog Personality

Your Dog's Personality

How well do you know your dog? You'll find out lots more about your pet's personality by answering the questions in this chart.

A drawing of a bug

Ugly Bug Contest 2009

The Ugly Bug Contest has been part of the Flagstaff Festival of Science and Mt. Campus Science Day since 1997. Ask-a-Biologist is pleased to extend the contest to the world via the Web.

a phyton with some eggs on it

Phyton Parenting

Read Perfect Python Parenting and then take this quiz to test your knowledge!

Feather Zoom Gallery (Feathers up-close)

There is nothing like seeing a feather up close.

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.

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.

Two green salamanders

He Ain't Tasty He's My Brother

While cannibalism is fairly common among insects and crustaceans, most backboned animals avoid feeding on their own kind.

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
Nerve impulse thumbnail

A Nervous Journey

Let’s take a ride. It is going to be a fast one, so be prepared. Where are we going? We are going to start at your head and end up at your toes. It may not seem like a long trip, but it is…

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.

Wordsearch | Crossword