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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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Most girls around the world have periods, but how and why do periods happen? Periods are part of the menstrual cycle, which is an essential part of the female reproductive system.
It's time to jump into the topic of us, or what makes you, you. Dr. Biology connects with Irene Gallego Romero via Zoom to talk about nature versus nurture and some of the amazing things our genome does for us. If you are wondering what a genome is, no worries, they cover that in…
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.
Dr. Biology learns how birds might have developed their ability to fly from ornithologist Ken Dial. The two talk about the evolution of bird flight and some of the other cool things birds can do - like are penguins really flying birds?
Have you looked at DNA? Really, you can see DNA if you follow along with biologist Melissa Wilson. This kitchen and classroom experiment is perfect for budding biologists.
An interview with mathematicians Cassie Pawling and Genevieve Toutain from the ASU Department of Mathematics and Statistics. A show filled with fun math tricks and even a bit of mind boggling mind reading.

There is more to our memory than you might think. In fact, we have three types of memory. Just how these memory systems work, and work together is the subject of this episode. We also learn that there are sometimes errors in our memory. Take a few minutes to learn how we remember things and even…

Dr. Biology travels to the Tres Rios wetlands, a place where all types of living things can be found. He talks with local biologists about many of the species and also gets a chance to sit down and talk with Quentin Wheeler who is starting a new Institute that will be exploring…

Plankton Zoom Gallery (Plankton up-close)

Plankton 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.

Pollen Gallery (Pollen up-close)

Pollen 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.

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.

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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…

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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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Scorpion with laser beams

Not So Scary Scorpions

Scorpions are often misunderstood. Many people say that scorpions are so aggressive they will sting themselves to death, but this is not a natural behavior of scorpions in the wild. Also in:…

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