Between 1965 and 1985, George Bornemissza of CSIRO's Division of Entomology founded and led the Australian Dung Beetle Project. Bornemissza, upon settling in Australia from Hungary in 1951, noticed that the pastureland was covered in dry cattle dung pads which did not seem to be recycled into the soil and caused areas of rank pasture which were unpalatable to the cattle. He proposed that the reason for this was that native Australian dung beetles, which had co-evolved alongside the marsupials (which produce dung very different in its composition from cattle), were not adapted to utilise cattle dung for their nutrition and breeding since cattle had only relatively recently been introduced to the continent in the 1880s. The Australian Dung Beetle Project sought, therefore, to introduce species of dung beetle from South Africa and Europe (which had co-evolved alongside bovids) in order to improve the fertility and quality of cattle pastures. Twenty-three species were successfully introduced throughout the duration of the project and also had the effect of reducing the pestilent bush fly population by 90%.