 The three re @-@ emerge from the glacier as primitive <unk> , their clothes ripped away to reveal <unk> . They continue to walk backwards with a more <unk> gait , and soon turn into <unk> . From there , they are transformed into a number of different species in quick succession , including flying squirrels , <unk> mammals , aquatic mammals , fish , flightless birds , small dinosaurs , and burrowing lizard @-@ like creatures . The environment around them changes rapidly as they travel , with <unk> showing millions of years of geological changes occurring in less than a few seconds . Finally , the three become mudskippers around a green @-@ brown puddle . The action briefly moves forward again to show the middle character registering his disgust at the taste of the water with a " <unk> ! " sound . The commercial ends with a transition to a product shot of three <unk> of Guinness accompanied by the strapline " Good things come to those who wait " . 
