RENO - The Nevada wildlife commission has rejected a request by animal rights groups to ban the use of dogs for hunting bears.The commission, at a meeting Friday in Las Vegas, voted 6-2 to deny the petition filed by six organizations, including NoBearHuntNV, the BEAR League and the Nevada Humane Society.According to the groups, over half of the states conducting bear hunts have outlawed the use of dogs as being "unsporting" and "unnecessarily cruel" to both bears and dogs.Dogs used to hunt bears are outfitted with GPS collars, they said, and the hunter waits until the dogs chase a bear …