Leese reported piebald dromedaries in Kordofan and Darfur in Sudan. It is distinguished for its large population of dromedaries estimated at 15,000 head. Several activities are proposed&colon; quad biking, motorcycling, horseback riding or camel trekking on dromedaries. After many Dromedaries are found, they help with building the city. Their herds include dromedaries, goats, cattle, donkeys and sheep. There are around 14 million camels alive , with 90% being dromedaries. Wild dromedaries inhabited arid regions, particularly the Sahara Desert. Aumont recalls that dromedaries were imported from a neighbouring zoo. Feral dromedaries in Australia prefer "Trichodesma zeylanicum" and "Euphorbia tannensis". Dromedaries are mainly active during daylight hours. Those animals are dromedaries, Bactrian camels, elk, American bison, and warthog. Other dromedaries included the Bishari riding camel of North Africa and Arabia. Dromedaries keep their mouths open while chewing thorny food. Dromedaries can be slaughtered between four and ten years of age. Dromedaries were introduced into Spain in 1020 AD and to Sicily in 1059 AD.