What does the tuatara digestive system look like?

The tuatara, a reptile native to New Zealand, has a unique digestive system adapted to its diet of insects and small invertebrates. It possesses a relatively simple stomach that lacks muscular walls, leading to a slower digestion process. Food is processed in the stomach and then moves into the long intestines, where nutrient absorption occurs. Tuataras also have a cloaca, which serves as a common opening for excretion of waste and reproductive functions.