Dogs! - Infotext

Rescue thought he'd grow up to be a Seeing Eye dog -- it's the family business, after all. When he gets the news that he's better suited to being a service dog, he's worried that he's not up to the task. Then he meets Jessica, a girl whose life is turning out differently than the way she'd imagined it, too. Now Jessica needs Rescue by her side to help her accomplish everyday tasks. And it turns out that Rescue can help Jessica see after all: a way forward, together, one step at a time. An endnote from the authors tells more about the training and extraordinary abilities of service dogs, particularly their real-life best friend and black lab, Rescue.

In 1921, Frederick Banting was a young doctor with an idea: could the mysterious secretions of the pancreas be used to treat diabetes? We now call this substance insulin, and its life-saving discovery was an impactful milestone in medical science.

Banting and his assistant, Charles Best, worked together in a small lab to test the theory with street dogs. Banting formed a special bond with one of his test dogs and gave her a name: Marjorie. After Marjorie responded well to insulin treatments, the treatments went on to be used for humans with diabetes--and the results were deemed practically miraculous.