Can a highly stressful environment during pregnancy affect how puppies turn out? Imagine this: A young dog goes stray and lives on urban streets for two months, in almost constant fear. Kids chase her down a street, throwing rocks at her; she is attacked by another dog; and she struggles every day to scavenge enough to eat. At last she is apprehended by an animal control officer and brought to a shelter. Here she finally gets enough to eat, but she's still not able to relax; the shelter is full of strange smells and loud noises, her run is small, and the floor is hard. After she's been at the shelter for a few weeks, a shelter staff member realizes that she is pregnant and due very soon. The shelter puts her on the waiting list for a foster home, knowing that puppies don't do well when they grow up in shelters.