Short Answer: Ruminants like cows and goats can digest cellulose.
Step-by-step explanation
A ruminant is a concept to refer to animals that are characterized by digesting food in two stages: first, they consume it, and then they carry out rumination, which consists of the regurgitation of ingested material. Some of the best-known ruminants are cows and goats. On the other hand, one of the most important types of carbohydrates digested by ruminants is cellulose, a carbohydrate that is the main component of plant cell membranes that is characterized by being resistant to acid digestion and the action of gastric amylases. However, ruminants have developed a gastric system by which some bacteria, yeasts, and protozoa present in the rumen or the large intestine partially degrade the cellulose and fatty acids that the animal uses for energy purposes.