dealer
(f) The term “dealer” means any person who, in commerce, for compensation or profit, delivers for transportation, or transports, except as a carrier, buys, or sells, or negotiates the purchase or sale of, (1) any dog or other animal whether alive or dead for research, teaching, exhibition, or use as a pet, or (2) any dog for hunting, security, or breeding purposes. Such term does not include a retail pet store (other than a retail pet store which sells any animals to a research facility, an exhibitor, or another dealer).