The Czechoslovakian vlcak, or Czechoslovakian wolfdog, came about from an experimental crossing of a Carpathian wolf to a German shepherd in 1955. Only 208 pedigreed vlcak exist in the U.S. as of 2014s, says the Czechoslovakian Vlcak Club of America. They weigh up to 60 pounds and serve in numerous jobs, particularly search, rescue and tracking. They have an independent nature not recommended for people without prior dog experience. Czechoslovakian vlcak pups sell for $1,500 to $2,000.