The Dwayyo was a doglike creature the size of a (?black) bear with abushy tail. It was the object of considearble interest in Maryland in 1965. A man called John Becker (pseudonym) is supposed to have had a fight with it in his yard. A doglike animal seen in Jefferson may have been the same creature.
The creature was connected with earlier sightings of a beast in Gambrill State park in the 1920s and one in Carroll County in 1944, where it was said to have given vent to loud screams.