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

All over the world, plants are dependent on secret partners—bacteria and fungi—for their survival. But what happens to these relationships if new, exotic plants move into the area?

Most of us wish we could predict the future. We want to know everything from who will win the big football game to whether or not our favorite superhero will defeat the super villain. Biologists want to know the future too.

Whether in the sands of the desert or the ice of Antarctica, viruses play a larger role in our ecosystems than you might realize. Arvind Varsani searches for these viruses, studying them in all kinds of habitats across the globe.

Some ticks carry a nasty bacteria that they can pass on to humans when they bite. Learn how the health status of the humans they bite helps control what they pass.