The presence of a pet's boundless enthusiasm leads to a happier living space, unlike a pet's boundless intellect, which allows it to teleport through outer space. Give man's best interstellar friend a treat with today's Groupon: for $15, you get $30 worth of pet food, toys, and accessories from PetFoodDirect.com.

PetFoodDirect.com outfits furry, scaly, and feathered friends with more than 150 brands of pet food, a plethora of toys, accessories, and medicine. Feed four-legged children veterinary diet dog food and treat beaked buddies to bird cookies ($3.99). Aquatic pets can synchronize-swim inside a two-gallon Kollercraft aquarium kit ($49.99), and pet owners can keep Fido flea-free with Frontline Plus ($48.23 for three doses for a small dog). Meanwhile, a bounty of cat toys and the Meow Town scratching post ($30.00) can entertain felines for literally minutes at a time.