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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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Nine months – that’s about the amount of time that healthy babies develop before they are born. But what if that nine months is a bit more flexible, and can change in response to the environment?

We hear about biologists studying everything from tiny organisms to whole ecosystems. But how can the role of a biologist be so broad? Let's take a closer look at what biologists do and how you can become a biologist.Also in: Français |…

Pregnancy isn’t perfect, and many things can go wrong. What happens when a growing embryo is in the wrong part of the pregnant person's body?
Fascinating and bizarre interactions control the world around us, at a scale too small to see—the nanoscale. By studying the nanoworld, we can create nanomachines that mimic nature.Also in: Italiano | عربى…

Dr. Biology interviews research scientist Kate Ihle at Barro Colorado Island in Panama. BCI is part of the Smithsonian Tropical Research Institute.

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…

Embark on a journey through the intricate dance of nature and innovation as we welcome Saad Bhamla, a scientist at the forefront of biological engineering. Your curiosity will be rewarded as you and Dr. Biology learn about some of the…

Have you ever wished for a place on the Web where you could find quality science content that you can count on and trust? Your wish has been granted. Learn about the National Science Digital Library and all the projects and resources created just for science, technology, engineering and math. It…

Teaching Kids About Germs

Let the Germs Begin

Germs are tiny organisms that can make you feel sick and cause disease. During this activity you will illustrate the steps germs take during transmission. You will learn about the different…

puzzle pieces with kazakhstan information on them

Kazakhstan

Read Where In The World Is Kazakhstan? and then take this quiz to test your knowledge!

Feather Zoom Gallery (Feathers up-close)

There is nothing like seeing a feather up close.

Ant Gallery (Get up-close to ants)

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

Plankton Zoom Gallery (Plankton up-close)

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

Pollen Gallery (Pollen up-close)

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

Microorganisms cartoon illustration

An Invisible Watery World

When you visit a pond or the beach, what kinds of living things do you see in the water? Depending on the environment, you might find fish, frogs, crabs, insects, seaweed, or lily pads. Don’t…

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Cloning Sheep

Cloning Ewe

What is cloning and do we have clones living among us today? The answers might surprise you or maybe we should say ewe.

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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…

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internet puzzle

How to Find What You Need on the Internet

Searching for things on the Internet can be like hunting for a needle in a large haystack. Just how large is the Internet?

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