 What does the narrator say is significant about horses?
I The horses and packs were loaded before we went aboard the scoutship. Daddy says that something has to be done in a closed society to keep the population from decaying mentally and physically, and this is it. One of the smartest moves in history was to include horses when they dropped the colonies. Considering how short a time it was in which the colonies were established, there was not time to set up industry, so they had to have draft animals. I don't know how many of those planets had animals that could have been substituted but, even if they had, they would have had to be domesticated from scratch.
 Horses are the reason for the colonies’ success.
 Horses are a nuisance and make it hard for both colonists and scouts to get their jobs done.  Horses make it easy for criminals to conduct their business planet to planet .  Horses are the reason for the colonies’ success.  Horses are the reason for the catastrophe suffered on Earth.