Man's best friend for 30,000 years: Canine skulls discovered in two separate digs reveals historic relationship
Dogs are great companionship, and my best friend.... but beware a loaded cat.
I guess it’s because a dog will conveniently eat your homework and other tasks that you should have done, while a dang ole woman will point out you never did it and call you a lazy so-and-so, even if the teacher/boss is right there. Else, a woman would be a man’s best friend.
It's their ability to smell, in particular to smell approaching humans, that make them so useful. If you've ever walked past a homeless person that hasn't showered for a few days, you know that humans are particularly smelly in their natural state. For most hunting animals, this would be a negative because it alerts prey. For humans, it's like the rattle on a rattlesnake. It's a warning to get out of the way of Earth's most deadly killer. Dogs serve as first alerts in tribal warfare of an impending surprise attack. Inferior skilled dogs were killed off along with the tribes that owned them.
Then how can they explain these:
There is a story told by the American Indians that the Great Spirit decided to divide the worlds of animal and man so he gathered all living beings on a great plain and drew a line in the dirt. On one side of the line stood man——on the other side stood all of the animals. And that line began to open up into a great crevasse-and at the last moment before it became unreachable, dog leapt over and stood by man. ~~Unknown