Many Motifs: All through the constructing are a variety of motifs of Australian fauna and flora, together with the platypus and koala. Attributable to its obvious hyperlinks to birds, mammals and reptiles, within the Twenties the platypus was central to MacKenzie’s research of comparative anatomy. Essentially the most spectacular platypus illustration within the constructing is the Perspex skylight within the lobby. In the meantime, intrigued by how they grasped overhead branches, MacKenzie dissected many koalas and used the findings of this analysis to deal with shrapnel shoulder accidents and rehabilitate wounded troopers once they returned from World Battle I.