With so many different types of wild dogs out there, here are facts about the most common, well-known, or those with extensive habitat ranges, plus facts about big, small, and rare ones.

6. New Guinea Singing Dog: An Elusive and Formerly Wild Breed Among the rare dog breeds, the New Guinea singing dog sets itself apart as one of the few that’s never been fully domesticated.

Researchers from the New Guinea Highland Wild Dog Foundation, Inc. located at least 15 New Guinea highland wild dogs. This is the first confirmed sighting in over half a century. New Guinea ...