Extinct and living penguin comparison. Computer illustration comparing the heights of extinct species of penguin (left four) to that of modern penguins (right four). From left to right: Waimanu sp.,Perudyptes sp.,Palaeeudyptes klekowskii,Icadyptes sp.,emperor penguin (Aptenodytes forsteri),king penguin (Aptenodytes patagonicus),Humboldt penguin (Spheniscus humboldti),Galapagos penguin (Spheniscus mendiculus). The distance between each horizontal line is half a metre. Reaching up to around 122 cm tall,the Emperor penguin is the tallest and heaviest of all living penguin species. However,the extinct P. klekowskii was taller,reaching over 1.5 metres |