In what could have been the final moments of Darren Cropper’s life, a miracle unfolded. He had a massive heart attack. But his one-year-old puppy, Bear, saved his life by jumping on his chest.

The dog seemed to have been jumping so hard and long, paw prints were embedded in Darren’s torso.

Later, paramedics would tell Darren that Bear must have been leaping up and down for hours. And that kept him alive.