Entrepreneurs can find their business niche by expanding upon the concept of pet health care facilities. In the US, there is a pet medical spa and rehabilitation facility. North of the border in Canada, there is a pool open just for canines.
If you're going to open a new business, you might as well have a superb product as your flagship. Pillar Pet Products, Inc. has a pretty spiffy start with its first product, the Perfect Petfeeder. For a $499 introductory price tag, it better live up to its name.
"Wolfing down food" is instinctive to wolves because if they don't eat their prey fast, another animal will. Unfortunately for many domestic dogs, they've inherited that instinct from wolves and wild dogs, but because of the domestic dog's more delicate digestive system, wolfing it down (or "wooffing it down") might end up as dog bulimia.
I doubt if B.F.Skinner ever thought his training methods would be applied to soccer training for goldfish, but they are now! Dr. Dean Pomerleau has developed a training kit to aid you in training pet fish to play soccer and other un-fish like sports, using the operant conditioning training methods he uses to train larger sea animals.
Polly want a cracker? Unfortunately, it'll make Polly poop all over your house the minute you let her out of her cage! If you love your little bird and want to let it fly free all over your house from time-to-time, then I've got a patent that should serve as a happy compromise for you both.
There are very broad U.S. government definitions of "meat by-products." They can include, and often do, any portion of any mammal including eyes, bones, head, digestive systems, and even a certain proportion of feathers and hairs.