The Universally Challenged

The erb have incredibly sensitive snouts and can smell things from huge distances. They have been trained by the syma community on Worm to sniff for the swollen root tubers of the phuna bush. The  tubers of the phuna bush are worth a fortune because they can be used to produce the much sought after life extending  phuna pip. Obviously the syma stand to make a lot of money from the sales of phuna bush tubers, especially if they can get hold of them before the erb eats them, which unfortunately, they usually do.