Every pet-sitting job starts with the fridge note, and the best ones have a line at the bottom that has nothing to do with feeding: “Moose can open the back door now, and we’re proud and concerned.” I collect those lines the way other people collect headlines. These 10 good things happened this year, from 135,000 shelter pets going home in a single month to a tiger walking free in Kazakhstan for the first time in more than 70 years.