In common with the plains zebra it is likely that quaggas were found in groups, known as harems, consisting of a number of adult females and led by a dominant male (2). Both males and females leave their natal group when they reach sexual maturity; the composition of adult harems is relatively stable over time with strong social bonds between individuals (6). Foals were born year-round although there appeared to be a peak season in early summer, from December to January (2). As with other equid species, the quagga diet consisted primarily of grasses. Herds tended to migrate to longer grass pastures during the day to feed, returning to areas of shorter grass at night where potential predators had less cover (2).