The specific design of that part of the study included the experiment just tested one skink (Eulamprus) with another competitor species (Egernia). I, also, wish that they had expanded the study to include more tests along that line. But most of the experiments involved cortisol levels under various handling procedures.
Any monitor keeper with access to a medical lab could devise similar experiments. All (LOL) you need is somone to run cortisol level tests on blood samples.
Any rich medics out there?

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