Michael, Brother of Jerry by Jack London — Read

For the rest of the voyage Michael had the run of the ship. Friendly to all, he reserved his love for Steward alone, though he was not above many an undignified romp with the fox-terriers.

"The most playful-minded dog, without being silly, I ever saw," was Dag Daughtry's verdict to the Shortlands planter, to whom he had just sold one of his turtle-shell combs. "You see, some dogs never get over the play-idea, an' they're never good for anything else. But not Killeny Boy. He can come down to seriousness in a second. I'll show you, and I'll show you he's got a brain that counts to five an' knows wireless telegraphy. You just watch."