Slovenia – Natalie Wilkie of Salmon Arm, B.C., and Mark Arendz of Hartsville, PEI each won a gold medal on Thursday to open the Para biathlon world championships. In the men’s 7.5 kilometre standing, Arendz missed his first target this season but hung on to top spot clocking 20 minutes and 14.0 seconds. Marco Maier of Germany was second in …