Bison Raised Right. West Paw's humanely, holistically raised bison grow up healthy while living lighter on the land, free from anitbiotics or homones, and regenerative agriculture practices that respect natural ecosystems. Pup Wellness Tip: Like humans, dogs need mental stimulation for healthy and happy brains, Pair West Paw's nutritious treats with a West Paw treat toy to challenge and reward Humanely raised and sustainably sourced protein Made in the USA from 100% American Grassfed Certified Beef liver Dogs will start their own stampede if it means they can get to these treats quicker. West Paw's Air-Dried Bison Lung Dog Treats have a chewy but sturdy texture, and are easy to break into smaller snacks. Bison is naturally high in protein, B vitamins, and omega 3 fatty acid, yet low in fat. These pasture raised, majestic beasts are sustainably sourced in the US and Canada.