Which is extinct, Blue Paul Terrier or Russo-European Laika?
Blue Paul Terrier: Blue Paul Terrier is an extinct breed of dog. Russo-European Laika: Russo-European Laika (Russko-Evropeĭskaya Láĭka) is the name of a breed of hunting dog that originated in the forested region of northern Europe and Russia, one of several breeds developed from landrace Laika dogs of very ancient Spitz type.
Blue Paul Terrier