Goran Štrkalj Macquarie University, Sydney, Australia   Introduction Figure 1. Galen of Pergamon (from the 1820 lithograph by PR Vignéron). The year 2018 marks the eightieth anniversary of the Cayo Santiago rhesus monkey colony. This exemplary research unit epitomizes scientific excellence in experimenting on non-human primates and in using them as models to understand the…