There was no question that the Horton dog was stronger.

But Skookum had buried a bone under some brushes by the plain and next day the hated Horton dog appeared.

Skookum watched him with suspicion and fear, until it was no longer doubtful that the enemy had smelled the hidden food and was going for it.

Then Skookum, braced up by some instinctive feeling, rushed forward with bristling mane and gleaming teeth, stood over his cache, and said in plainest dog, "You can't touch that while I live!" And the Horton dog--accustomed to domineer over the small yellow cur--growled contemptuously, scratched with his hind feet, smelled around an adjoining bush, and pretending not to see or notice, went off in another direction.
What was it that robbed him of his courage, but the knowledge that he was in the wrong?
Continuing with his host Rolf said, "Do you think they have any idea that it is wrong to steal ?" "Yes, so long as it is one of their own tribe.

A fox will take all he can get from a bird or a rabbit or a woodchuck, but he won't go far on the hunting grounds of another fox.