Why is Lazzaro Spallanzani's gastric juice experiment an example of creativity in science?

Lazzaro Spallanzani's experiment is a good example of creativity because he designed the experiment and found a new way to explore gastric juices.

Lazzaro Spallanzani, an Italian biologist and physiologist, was the first scientist to dissect animals for digestion trials. He used the animals as models for humans digestive system, designed the experiment, and was the first to interpret the process of digestion.