Explore with Willy

Meet the axolotl, a salamander that never fully grows up. Discover how it can regrow body parts and what makes this rare creature so special.

Meet the cranberry! This little red fruit has a big story to tell. From its beautiful pink flowers to its surprising floating trick, the cranberry is more than just a holiday side dish.

Did you know some firefighters start fires on purpose? Discover how prescribed burns help prevent wildfires and keep forests and prairies healthy.

Spotted or striped or marbled and covered in hair. What are we talking about? Spiders, of course.

There are many animals to observe outside in the Will County forest preserves, but its visitor centers are also home to a variety of species, some native and some not.

For some people, one of the less desirable things about fall is that insects start making their way indoors as temperatures begin to drop.

Did you know Illinois has a state rock? Discover how dolomite formed in ancient seas, why it matters and where you might find it today.

Take this 10-question quiz to see you how much you know about what birds we can see in Illinois all year long.

Muskrats are skilled swimmers that make their homes near water. Learn about their favorite foods, their babies and how they survive winter.