EXPERIMENT
Specific predictions are tested by doing experiments or making further observations. As before, many possible experiments and observations can arise from a specific prediction. We will examine one of many possible experiments that can test our prediction:

One hundred adult shrimp are divided at random into two equally sized groups and maintained under identical conditions except for their food.
The control group is fed the same green algae that led to the original observation.
The experimental group is fed algae of a different color.

The shrimp in the two groups are observed periodically for several months, and detailed records of shrimp color are maintained for both groups.