Bizarre and unsettling footage captures a flock of sheep walking in continuous circles for hours on end. Experts and viewers alike are puzzled by this strange behavior—could it be a natural phenomenon ...

Twelve received intraluminal SOD(10mg/kg) in 2 loops, and no SOD in 2 control loops. Animals were sacrificed 4 hrs. post surgery. Loops were fixed in formalin and examined histologically for the ...