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

RNA is an important molecule that often helps your body make proteins. But RNAs aren’t all the same—some may help your immune cells fight off infections by providing them with extra sugar.

Being a parent is hard work. Though a snake might not seem comforting to you, pythons are actually very dedicated moms that take good care of their kids.

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.

The desert is a tough place to live – food may be tough to find, rain only comes in certain seasons, and the temperatures can be hard to handle. How does one special lizard, the Gila monster, deal with these difficulties?