Why are Small Intestines Longer in Herbivores as Compared to Carnivores?

Answer: Herbivores have a longer small intestine than carnivores because they eat plant and grass-based food, which is high in cellulose, and cellulose digestion takes a long time. 

The gallbladder stores bile, which is a digestive liquid secreted by the liver. Bile is a digestive fluid that aids fat digestion and absorption in the intestines. Depending on the food that an animal consumes, the length of the small intestine varies. Herbivores require a larger small intestine to digest cellulose, which is found in green plants.