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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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Whether a friend whispers in your ear, or you hear a jet flying high in the sky, sound is all around you. But how does a tiny sound wave change from waves in the air to sounds or sentences that we can understand? Also in: Français |…

A True Bug is triumphant in the Ugly Bug Contest 2010.

Humans interact with their environment using their sense of touch. This story explores how touch works.Also in: Español | Français

We hear a lot about DNA, but not as much about RNA. It is true that DNA is the encyclopedia of life or the ultimate instruction manual for living things. But what good is a book if it is not read or an instruction manual that is not used? This is where RNA comes into the story of life. It is the…

The public has decided. Congratulations Orthoptera, you have earned your 008 status.

Imagine you want to pull a long cylinder-shaped piece of soil (called a core) out of the ground in your backyard. What kind of tools would you need? Find out how researchers collect cores in the Frozen Arctic.

Dr. Biology gets the skinny on our largest organ - our skin. Professor and author Nina Jablonski talks about the important ways our skin works for us each day.

As the town faces unspeakable forces of nature, who will save the day?

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.

an astronaut in space

Space Physiology

Read Spaced Out Physiology and then take this quiz to test your knowledge!

Pollen Gallery (Pollen up-close)

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

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.

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.

Ant Gallery (Get up-close to ants)

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

Sea Urchin

Sea Urchins Do Research

No, urchins are not indigenous to the desert. The usual home for Strongylocentrotus purpuratus is the ocean's rocky floor for grazing along the intertidal and subtidal areas. Also in:…

Wordsearch | Crossword
jigsaw sail boat

Why Are English Sailors Called Limeys?

Imagine you are on a sailing ship in 1747. You left England only a couple of months ago and you felt fine. Now you are so tired you can barely walk. Dr. Lind wants to discover what is causing…

Wordsearch | Crossword
Plants we use for medicine

Nature's Medicine

Medicinal plants come in all shapes and sizes. Probably some of the weeds growing in your yard, fields, or even cracks in your sidewalk are medicinal. Who knew there was a different kind of…

Wordsearch | Crossword
Leafhopper

True Bugs

Not all insects are bugs, but all bugs are insects. How can this be? Learn about some particular insects that biologists call true bugs. Also in: Español…

Wordsearch | Crossword