The air on the savannah drives a slow rhythm across open grasslands as giraffes lift their heads and a hippo bellows from a shaded wetland — this is Werribee Open Range Zoo, an African-style safari a short drive from Melbourne. You begin on a 40-minute bus safari that moves through wide paddocks where zebras, antelope and rhinos graze with the casual authority of animals used to space. On foot, paths lead to one of Australia’s largest gorilla exhibits and viewing platforms that put you level with a pride of lions resting in the grass.