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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Biologists at Arizona State University hope that by learning more about animal behavior, they will also be able to understand why people act the way they do. Also in: Español

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.
Our biological sex affects the way we look in some obvious ways, like deciding what body parts we are born with. But, it also has effects on a range of other sexual traits that you might not expect.

Being a parent is hard work. Though a snake might not seem comforting to you, pythons are actually very dedicated moms that take good care of their kids.Also in: Español

In a world where animals, humans, and the environment are forever linked, the health of wildlife is a cornerstone for the well-being of all. In this episode, we embark on an extraordinary journey with Sara Wyckoff, a wildlife veterinarian from the Texas Parks and Wildlife…

Dr. Biology sits down to learn from two of the best science journalists in the world. Listen in as he gets some pointers from Pauline Davies and Robyn Williams.

What is life and how do biologists decide if something is living or non-living? Dr. Biology visits with physicist Paul Davies and microbiologist Ferran Garcia-Pichel. They talk about life, extreme life forms (extremophiles), and the possibility of life on other…

If you could travel back in time what would you find 50 million years ago? What was the climate like? Would you find the same plants? What animals were crawling, walking, and flying around? Paleoentomologist Bruce Archibald takes Dr. Biology back in time to explore the planet…

an example of a desert biome

Desert Biome

Read Delving into Deserts and then take this quiz to test your knowledge!

a zoomed in cartoon of plankton

Plankton

Read An Invisible Watery World and then take this quiz to test your knowledge!

Leafcutter Ants

Life of the Leafcutter

Learn what makes leafcutter ants unique and understand how the different castes of ant work together to provide for the colony.

Cell viewer game

Cell Parts Game

Explore the Cell Viewer Game

Cells are the basic building blocks of life, but what all do cells hold? You can now look inside of cells to learn…

Solving mysteries illustration

Using the Scientific Method: The Case of the Mystery Images

Play The Case of the Mystery Images

Looking for another detective assignment? Practice all the new detective skills you learned in the…

Keys to the Ocean Taxonomy Game

Keys to the Ocean Game

Play the Keys to the Ocean Game

Our world is full of different plants, animals, bacteria, and other life. But how do we know which species is…

hand bones

Busy Bones

Explore the Bone Anatomy Viewer

Ever wonder what’s inside your bones? Here’s your chance to find out! Dissect a virtual bone and learn…