Katie is proof that young people can do big things.
The College Station fourth grader met Margo, a German Shepherd, at the Aggieland Humane Society.
Margo is heartworm positive and Katie wanted to help her out. She and her classmates at Rock Prairie Elementary raised more than $250 for Margo's treatment and the extra money she raised is helping to fund treatment for another dog with heartworms.
Margo is receiving her treatment and has been adopted.