Shot of technician walking down aisle, stopping at cage, CU of hand placing white mouse at feeding saucer in cage. Shot of female laboratory technician stirring liquid in bowl. CU of laboratory technician pouring liquid into flask, shaking liquid in flask. CU of hand removing three flasks from air agitation tubes. Shot of laboratory apparatus, two laboratory technicians working in background. CU of liquid dripping into three glass tubes. MS of man checking liquid in flasks being machine-stirred. LACU of technician looking into microscope. LACU of technician pouring liquid from tube into beaker. Shot of technician removing tape from rat, other technician preparing slab, looking at slab in microscope, writhing down notes. Shot of female technician setting up bunsen burners under flasks, liquid starting boiling. CU of liquid boiling in flasks, TILT DOWN to burners and liquid dripping off tube. MS of two women putting salve on backs of white rabbits. CU of white rabbit in box. HAMLS of customers shopping inside Loblaws supermarket.