Various theories have been put forward in an attempt to explain the bizarre phenomenon, but to date no satisfactory answers have been found. Some commentators suggest that kangaroos in the United States are the shy descendants of animals that, on some unknown occasion in the past, escaped from a circus or zoo. One rational explanation is that they are native marsupials not yet officially discovered or classified; however, the only evolutionary ancestors come from South, not North, America.
Read about four different sightings of wild kangaroos in the United States. Not surprisingly, some people believe that the mystery animals of North America are paranormal manifestations of some kind. But that might be jumping to conclusions.