There is a story told by the American Indians that the Great Spirit decided
the worlds of animal and man
so he gathered all the 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.