Select the word that means shrinks away in fear.
Transforming a puppy into a trained guide dog is a long, arduous process. Soon after potential guide-dog puppies leave their mothers, they are placed with puppy raisers.
These volunteers raise the puppies in their homes and provide basic training. They also watch the pups for potential problem behaviors, which must be reported to the professional dog trainers. For example, a puppy that cowers under furniture and cries when it hears loud noises probably couldn't lead a person safely during a thunderstorm.