Dogs 101your canine companion
The first definite proof of a\xa0link\xa0between humans and dogs is a 15,000-year-old grave holding a dog, a man and a woman. Intensive breeding of dogs began\xa0about 200 years ago, which resulted in\xa0most of today's\xa0450-or-so breeds. And there's\xa0a definite mutual appreciation society between people and\xa0canines