The county of Miami-Dade, Fla., covers more than 2,000 square miles, ranging from South Beach to the Everglades. It is filled with millions of creatures — alligators, Chihuahuas, you name it — but there is only one team dedicated to animal emergencies: the men and women of Miami Animal Police. For the Miami-Dade Police Department Animal Services Unit, their city is literally an urban jungle.