Authorities are investigating after a human scalp was discovered in a Joplin campground. Newton County Sheriff reports the owner of the Holly Haven Campground of Joplin found the scalp Saturday morning near a pond. Cadaver dogs and a dive team were sent to the scene but found nothing. The scalp has been sent to the Missouri State Highway Patrol crime lab for analysis. Newton County Sheriff Chris Jennings said the scalp was probably dragged to the campground by animals.