In which organ of the alimentary canal are the villi located?

The villi are located in the small intestine. They are essential. Thanks to the villi, food moves to the large intestine. Without the presence of villi, this would be impossible, since the intestines are rather tortuous. Because of this, food cannot move under the force of gravity, as it does in the esophagus. The intestine of mammals is large, since the digestion process continues there, beneficial bacteria live there that break down fiber, and also absorbs water and various organic substances there.