Welcome to Ask A Biologist. This site has a large collection of biology learning materials that includes stories, games, activities, videos, and a podcast.

Climate is a hot topic in the news and on internet websites and blogs. But what exactly is climate? And how do we know it is changing?Also in: Español

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.
A pregnant person's blood type is usually compatible with the fetus’s blood type. But what happens when that’s not the case?

We celebrate Earth Day every year, but in reality every day is Earth day. For our part here are some fun activities and things you can do to help the Earth.

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…
How do animals keep warm when the temperatures drop? It is not like they can turn on heater or bundle up in a layers of warm clothes like humans do. Before you watch this video, try to think of ways animals might keep warm.
Biology, butterflies, and violin ballads are just a few of the things Dr. Biology talks about with ASU School of Life Sciences Professor Ron Rutowski.

Remember your last paper cut, or the bad cold that had you coughing and blowing your nose? It was your immune system that was busy trying to make you better by battling the bacteria or virus that was attacking your body. How your immune system works is the discussion Dr. Biology has with…

small bugs on sticks

True bugs

Read True Bugs and then take this quiz to test your knowledge!

a girl about to eat some grapes

How do we sense taste?

Read How Do We Sense Taste? and then take this quiz to test your knowledge!

An illustration of different cell sizes and a ruler, to measure nuclear cytoplasmic ratios

Cell Size SIM

Play the Cell Size SIM

Certain cell types should have a general size and have proportionate parts. But what if those sizes and proportions are…

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…

Learn about the peppered moth

Picking off the Peppered Moth

Play the Peppered Moths Game

Get your beaks ready, it's moth-hunting time. In the Peppered Moths Game, you take on the role of the hunter and…

A clean glass of water with sparkles around it.

Water Activities Central

Visit Water Activities Central

Water is an essential part of our lives. It keeps us alive, helps to grow our food, helps keep our…