Hewight 2 1/4" Width 1 1/4" Companions of humans, they provide us with friendship, warnings, and protection. Domesticated canines have been bred for a variety of purposes, with each particular breed being adept at specific tasks. Now we are training dogs for a variety of services to help people do things better. Most dogs are very faithful to one person in a family, and they will love that person, even if abused by him/her. Dogs teach us how to give others unconditional love.