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

You may have heard that bacteria can be good or bad. But what if some bacteria can be both? Let’s find out more about bacteria that are sometimes mischievous.

Cacti live in one of the harshest climates on the planet: the desert. Scientists are investigating how we can make life easier for these desert-dwelling plants.

Exploring space is exciting but are there drawbacks for astronaut immune function? Scientists are investigating how spaceflight affects immunity in fruit flies.

What’s in the Story?If you asked all your friends about their favorite foods, someone would likely say pizza. Pizza has been an American favorite since its introduction from Italy.