O.T.I.S. Wild Things honors canine instincts with clean, limited-ingredient treats that reflect the ancestral diets dogs were born to follow. Proudly made in the USA using wind energy, our treats feature proteins sourced from responsibly raised animals and include no GMOs, hormones, or artificial additives. Each purchase helps fund medical dog programs that support children through therapeutic connection and healing. The Lung Filets line includes crunchy, air-dried treats made from 100% lung—bison, elk, or venison—with nothing else added. These single-ingredient snacks are naturally rich in flavor and easy to break apart for training, portioning, or daily rewarding. Whether you're catering to a sensitive stomach or simply prioritizing clean nutrition, these filets deliver a satisfying crunch and tail-wagging enjoyment in every bite. With transparency, simplicity, and purpose at the core, O.T.I.S. Lung Filets are treats you can trust and dogs truly enjoy.