Well, actually, there are several somethings -- the size, the sloped sides, the rubber ring along the bottom that prevents sliding, the ease of cleaning, as well as the look.
Available in yellow in three sizes (12-36 liquid oz.), ivory in two sizes (24 and 36 liquid oz.), and green in one size (36 liquid oz.). Prices range from $14.50-$24.50.
Why doesn't our own dog have such a bowl? Good question. Laziness. Off to George we must go.