Animal digestive system is closest to a human?

The animal digestive system that is closest to that of a human is that of a pig. Both humans and pigs are omnivorous, meaning that they eat both plants and animals. The digestive systems of both animals are similar in structure and function. For example, both humans and pigs have a mouth, esophagus, stomach, small intestine, and large intestine. The digestive processes in both animals are also similar. For example, both humans and pigs use enzymes to break down food, and both absorb nutrients from food through the walls of the small intestine.