Meet Molly Polly, the diabetes alert dog whose round-the-clock job is to keep her two young owners healthy; Bailey, the Assistant Director of Seagulls, who keeps the pesky birds away from the heritage vessels at the Australian National Maritime Museum; and Daisy, the Collie mix living in Pennsylvania who’s a full-time guide dog for another dog. From inspirational moments of bravery to dogs doing the jobs that no one else can, here are 24 life-affirming stories of the most remarkable dogs on the planet.