SEATTLE - There may never be a campaign to save the Puget Sound ratfish; no one really loves the ugly fish with rodent-like front teeth. But when a rare albino ratfish was found during a marine survey this past summer, scientists decided it was time to educate the public about the most abundant fish in local waters. The cartilaginous cousin of skates and rays is usually brown or black with white spots so it can blend in with the bottom of the sound, where it uses its rat-like teeth to crush clams, crabs and worms scooped up from the sand...