dromedaries
Esther 8:10
And he wrote in the king Ahasuerus' name, and sealed it with the king's ring, and sent letters by posts on horseback, and riders on mules, camels, and young dromedaries:
Esther 8:14
So the posts that rode upon mules and camels went out, being hastened and pressed on by the king's commandment. And the decree was given at Shushan the palace.
Micah 1:13
O thou inhabitant of Lachish, bind the chariot to the swift beast: she is the beginning of the sin to the daughter of Zion: for the transgressions of Israel were found in thee.