chatham's south beach. just a few days ago seals swimming near the shore attracted the sharks putting swimmers and lifeguards very much on edge. >> yeah, i'd be on edge too. >> just leave nature alone every now and then. just let them be. >> we'll be right back. ♪ follow you wherever you may go ♪ ♪ there isn't an ocean too deep ♪ too deep ♪ [ male announcer ] meet rachel and annie. we asked them to be part of an experiment to prove febreze air effects eliminates tough cooking odors. [ facilitator ] take a deep breath, tell me what you smell. it's grassy. it's green. it smells like fresh wood. like a latte. [ facilitator ] go ahead and take your blindfolds off. oh my goodness. are you serious? wow. i think my nose touched that.