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

Bonobos and chimpanzees look a lot alike and they use similar gestures or movements to communicate. But do the same gestures always mean the same thing?

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 different than they should be? The size of the nucleus versus the size of the cytoplasm in a cell is an important measure – it can tell us if something might be wrong with that cell. Explore more about this "NC ratio" in Cell Size SIM.

To learn more about cells, visit The Building Blocks of Life.

Do you think math would be easier if the numbers were color coded? For people with synesthesia, remembering might be a bit easier due to differences in how their brains work. Synesthesia happens when senses—taste, hearing, smell, sight, or touch—that are normally not closely linked are experienced together.

Play the Venom! Game

The 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 invader game, you will defend the cells of the body against molecules of scorpion venom using antivenom.

To learn more, visit our story, Venom!