The three re @-@ emerge from the glacier as primitive hominids , their clothes ripped away to reveal loincloths . They continue to walk backwards with a more simian gait , and soon turn into chimpanzees . From there , they are transformed into a number of different species in quick succession , including flying squirrels , furry mammals , aquatic mammals , fish , flightless birds , small dinosaurs , and burrowing lizard @-@ like creatures . The environment around them change rapidly as they travel , with cutaways 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 move forward again to show the middle character registering his disgust at the taste of the water with a " Pweugh ! " sound . The commercial end with a transition to a product shot of three pints of Guinness accompanied by the strapline " Good things come to those who wait " .