Hindgut fermenters include which animals?

• A. Cows and Sheep
• B. Pigs and Chickens
• C. Dogs and Cats
• D. Horses and Rabbits

Answer: (D)

Hindgut fermenters digest fibrous plant material in the hindgut—the cecum and colon—after the stomach and small intestine. This means fermentation happens later in the digestive tract, not in a specialized foregut chamber like a rumen. Horses and rabbits are classic examples because they rely on a large cecum and extensive hindgut fermentation to extract energy from roughage. Rabbits even practice coprophagy to reclaim nutrients produced by this fermentation. By contrast, cows and sheep are foregut fermenters with a rumen where most fermentation occurs before the true stomach, while pigs and chickens have simpler digestive systems with limited hindgut fermentation, and dogs and cats are monogastric carnivores with minimal fiber digestion. So the best answer is horses and rabbits.