They are less than an inch long, weigh mere grams, and move incredibly slow with average speeds of 0.03 miles per hour. We are talking about snails, a soft-bodied mollusk called the Gastropoda.

On this episode of the Supercast, we take you to an Advanced Placement (AP) Environmental Science class at Mountain Ridge High School where small snails are having a big impact on students studying the ecosystem. Find out the role snails are playing in the AP course, and how the class is capitalizing on the snail-based learning.