When we get hurt, our bodies work hard to heal—but the process isn’t always perfect. Scar tissue often does look or work the same as the old. Taking inspiration from star-healers in the animal kingdom, Dr. Kaitlyn Sadtler envisions a future in which recovering from traumatic injury doesn’t just mean mending but truly regenerating. In this episode of Research in Action we go inside Dr. Sadtler’s lab to see how her team is using cutting-edge technology and new biomaterials—including ones made