TRUCKEE (AP) — Scientists following up on a rare wolverine sighting in the Sierra Nevada set up cameras and captured video of the animal scurrying in the snow, scaling a tree and chewing on bait. They believe the wolverine is the same one that eight years ago became the first documented in the area since the 1920s. Chris Stermer, a wildlife biologist with the California Department of Fish and Wildlife, set up the remote cameras in the Tahoe National Forest after officials at a field station sent him photos in January of unusual tracks in the snow near Truckee.