Animal-activated animal waterers; Animal activated livestock feeders; Animal activated livestock waterers; Animal-activated pet feeders; Animal-activated pet feeders that include dispensers for releasing pet toy feeder balls with pet food and pet treats therein; Automatic pet feeders; Automatic pet feeding bowls; Automatic pet waterers; Disposable liner pads for animal litter boxes; Domestic animal feeding and drinking bowls; Feeding troughs; Feeding troughs for livestock