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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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Have you ever wondered why some twins look so alike and other siblings may not? Let’s explore how twins form in the womb and how they may grow up to be similar or different.
You might have heard of both gender and sex before, but what’s the difference? Sex is based in the biology of body parts, but gender is socially constructed and based on much more.
If a living organism freezes, it can die. But by freezing living cells at just the right temperature, scientists can preserve living cells instead of killing them.

Grasslands may look like they sound – just land filled with grass – but there is a lot more to grasslands than you might think. Also in: Español | Français | Português

In the tiny world of DNA, we might call genomes monsters. These huge sets of information include all the codes for all the genes present in an organism. From genomes, we can learn about the traits, diseases, and evolution of a species, and that’s just a start. What might such a monster set of…

Microbes are everywhere, but what are they? We get the inside story from microbiologist Valerie Stout about these tiny life forms including a slimy and gooey material many microbes make called biofilms. In fact, you have a daily encounter with biofilms and bacteria that can…

Professor Susanne Neuer from the ASU School of Life Sciences talks about her research and how a person in the southwest desert can be studying deserts in the oceans. Yes, we said deserts in the ocean. Listen in to find out why.

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…

scorpion game

Venom!

Play the Venom! GameThe shape of a molecule is very important. It’s what makes it possible for proteins to interact with other parts of the cell. In this…
Cardinal bird

Bird Finder

Test drive our Bird Finder tool based on our virtual bird aviary of the southwest. A great way to learn about birds in your own backyard. Image of Northern Cardinal above by Robert Shantz.
Plankton Activity

It’s a Plankton Eat Plankton World

During this activity you will learn how to create your own food web. You will also analyze the feeding relationships between marine organisms and describe the importance of plankton to the…

Dr biology looking at some ants

Collecting Ants

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

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.

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.

Feather Zoom Gallery (Feathers up-close)

There is nothing like seeing a feather up close.

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…

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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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Ants in nest

Ant Farm

Farming ants might sound like a crazy thing to do unless you might like to eat chocolate covered ants. It turns out we can learn a lot from ants and the best way is to build your own ant farm.…

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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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