Zander, a white samoyed-husky mix, navigated two miles of tricky neighborhoods and across a busy highway to find his owner who was in the hospital, and now he’s not leaving his side. As John Dolan lay in his hospital bed at the Good Samaritan Medical Center in Islip, N.Y., Sept. 27, he got a phone call from a hospital employee that he had to come get his dog. One problem, Dolan was inside the hospital and his wife, Priscilla, was asleep at home. When Zander and Dolan were finally reunited, they couldn’t be happier. “He’s my boy. He’s been glued...