CSs and CUs of skull of dead sheep on beach soiled by oil spill. CSs and CUs of dead bird covered with oil on beach. Various CSs of biologist picking up bird and holding it as he talks about the effects of oil spills. HAMCS of skull of dead sheep on beach, a biologist and his assistant come into view, inspect skull and walk away, ZOOM IN to CS of skull. MCS back view of biologist and his assistant walking on beach soiled by oil spill.