historians say it was left in Tulln after the alien invasion of acre . It would have shocked residents as camels were an alien species . ' They did n't know what to feed it or whether one could eat it , ' he said . the army used camels for transportation and as riding animals .
Scientists say camel was left in Tulln after the 1683 siege of Vienna . It would have shocked residents as camels were an alien species . 'They did n't know what to feed it or whether one could eat it , ' study said . Ottoman army used camels for transportation and as riding animals .