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

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.

Our oceans are becoming warmer and more acidic. How might these changing conditions put marine food webs in danger?

Battling bacteria can be tough, as they can evolve quickly and resist many of our treatments. But Shelley Haydel is working on new ways to fight bad bacteria.

Some organisms, like this fungus, are able to glow, as if they were from an alien planet. But until recently, plants couldn't glow. Learn how scientists have found a way to make plants glow here on Earth.