There is no incongruity in the idea that in the very earliest period of man's habitation of this world he made a friend and companion of some sort of aboriginal representative of our modern dog.
In return for its aid in protecting him from wilder animals, and in guarding his sheep and goats, he gave it a share of his food, a corner in his dwelling, and grew to trust it and care for it.
Probably the animal was originally little else than an unusually gentle jackal, or an ailing wolf driven by its companions from the wild marauding pack to seek shelter in alien surroundings.
One can well conceive the possibility of the partnership beginning in the circumstance of some helpless whelps being brought home by the early hunters to be tended and reared by the women and children.
Dogs introduced into the home as playthings for the children would grow to regard themselves, and be regarded, as members of the family.....