The ratites are large flightless birds, and include ostriches, rheas, cassowaries, kiwis and emus. Dogs were brought from Britain in 1803 for hunting kangaroos and emus. Struthioniformes contained all the ratites, such as the kiwis, emus, rheas, and cassowaries. The Outback is an Australia-themed exhibit housing groups of emus and Bennett's wallabies. CAF introduced the HT65000 EMU sets, similar to the RENFE Class 120 / 121 EMUs. Dromornithids looked superficially like very large emus or moas. Originally the garden was stocked with exotic birds including Emus. There are few native natural predators of emus still alive. On 2 November the men travelled to Campion, where some 50 emus were sighted. He completed nine spacewalks in Russian Orlan spacesuits and American EMUs. The new rakes are much cooler and airy than the old EMUs. Abellio ScotRail operates a diverse fleet of DMUs, EMUs and loco-hauled stock. They are the only Juniper EMUs to feature end gangways. Early reconstructions of dromornithids made them appear like oversized emus. The difficulties facing farmers were increased by the arrival of as many as 20,000 emus.