Abstract
The relationship between environmental light levels and their implications on the dimensions and functionality of the eye in primates, more specifically along the human lineage, has been founded mostly on speculations and the literature has not yet come to a consensus on what anatomical measurements would be indicative of environmental conditions or species behavior. Recent publications have claimed to have found a direct positive correlation between latitude and the size of human orbitals (Pearce and Dunbar 2011). Their methods and the accuracy in the link they make between their measurements and their subsequent implications have been called into question (Meyer et al. 2014). Additionally, most of the data collected does not include populations south of the equator where many of our most characteristic behaviors as Homo sapiens are presumed to have evolved. This project aims to inform the literature on the correlation, if indeed one exists, between the scaling of human orbital size and latitude at which these populations are found. It further attempts to explore the relationship between orbital size and activity patterns (particularly in regards to feeding or predatory behavior) which has also been a proposed mechanism for the evolved dimensions and certain functions of the eye.