Ruby was the only walrus pup on the ice shelf who didn't have her tusks.
Poor, poor, Ruby!
"But I want to have pretty tusks." Ruby told her mama. "All the other walrus pups have theirs." And Ruby's mama always said the same thing to her, in a song:
"One day you'll be blubbery and fat, with long strong tusks for grousing at this and that."
But poor Ruby thought her mama was a moron.
And so it was that Ruby went philandering around the ice shelf trying to fill the void in her walrus heart.