Study: "Tough love" from mom makes a better guide dog

Guide dog trainers look for specific personality traits when deciding who will make the cut and researchers say those puppies whose mothers were less attentive to their needs are better developed than those who doted on their every move.At just over seven weeks old, Golden Retrievers and Labradors at The Seeing Eye in New Jersey are already in training as future guide dogs for the blind, learning to interact with others, adapt to new surroundings, and remain calm while under stress, reports CBS