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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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Giant beetles, flying treadmills, oxygen and prehistoric insects are just a few of the things that Dr. Biology learns about when visiting with biologist Jon Harrison.

The colorful wings of butterflies and moths aren't just part of a beauty contest.  Learn how these changes in coloration have allowed species like the peppered moth to survive in an ever-changing environment.Also in: Deutsch |

Humans are constantly changing the world. This can be in good ways, like some conservation efforts, but sometimes it is also in bad ways, like with pollution. Learn the ways in which we can help the world around us by understanding how we affect nature.Also in:…

Where might we find life, and what should we even be looking for to see if life exists on other planets?. Sara Walker is going where others have not gone before in the search for life.
For hundreds of years, scientists have explored life on Earth with their feet firmly planted on the ground. Doing research was either in the laboratory, or out in the field. But in recent years exploring our planet has taken to the air. Dr. Biology gets to spend some time with ecologist
An interview with microbiologist Shelley Haydel from the School of Life Sciences and the Biodesign Institute at Arizona State University by co-host Marissa Henderson. This episode gives you something to think about when it comes to mud and why we say science is…

Could fire be important for life on Earth? Would Earth be the same without fire? These are just a few of the many questions we have for fire researcher Stephen Pyne about fire and its role with life. Did we also mention his battle with a dragon? If you have a burning desire to…

An interview with biologist Dave Pearson research professor in the School of Life Sciences at Arizona State University and Audubon environmental educator Cathy Wise. Dr. Biology learns from his two guests that bird watching is pretty cool and fun.
a cartoon of a human and some animals showing internal body parts

Animal Physiology

Read Focusing on Physiology and then take this quiz to test your knowledge!

some berries coming out of a medicine bottle

Medicinal Plants

Read Nature's Medicine and then take this quiz to test your knowledge!

a girl looking at some puzzle pieces that have different ecosystems

Ecosystems

Read I Spy an Ecosystem and then take this quiz to test your knowledge!

a cartoon of the taiga biome

Taiga

Read Trailing Through Taiga 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.

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.

Darwin and Mendel's Afternoon Tea

Darwin and Mendel's Afternoon Tea

An imaginary conversation between two great thinkers, Charles Darwin and Gregor Mendel. While the monk, Mendel, had read Darwin’s publications - Mendel's work only came to be known later. We…

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Orchid bee

Bee Jeweled

Orchid bees come in an amazing array of shapes and colors. You could call them the jewels of the bee kingdom. Also in: Nederlands |

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Half human, half animal eye

Seeing Color

Did you ever wonder why you see the colors you do or if other animals see the same colors that you see? We see light that bounces off of things around us. When the light enters our eyes,…

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Two illustrated bats

Bats

Like humans, bats are mammals. They are warm-blooded, covered in hair, have live young, and nurse their young (called pups). Unlike humans, bats have wings, which allow them to fly.Also in:…

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