Canadian Brand. Noah's Ark Dehydrated Beef Marrow Bones are a durable, long-lasting chew made from high-quality beef and gently air-dried to preserve natural nutrients. Packed with protein and rich, natural flavor, these single-ingredient bones help support dental health by reducing plaque and tartar while satisfying your dog’s instinct to chew. Ideal for medium to large dogs, they provide a rewarding chewing experience with no additives, preservatives, or fillers.