Скачать или смотреть The Sneaky Reason Humans Have Visible Eye Whites

Among all primates, humans are the only species with uniformly white sclera (the whites of the eyes), colored irises, and horizontally elongated eyes that clearly reveal gaze direction. Scientists call this the "Cooperative Eye Hypothesis" — our ancestors evolved visible eyes to communicate silently, coordinate activities, and share attention without speaking. Other primates hide their gaze because revealing where you're looking creates vulnerability. But humans chose trust. Studies show human infants follow eye direction while great apes follow head direction. Your eyes have 3x more visible sclera than any other ape. They're not just for seeing — they're for being seen.
📚 RESEARCH:

PMC/eLife — "Experimental evidence that uniformly white sclera enhances eye-gaze direction visibility"
Tomasello et al. (2007) — "Reliance on head versus eyes in gaze following"
Kobayashi & Kohshima (2001) — Comparative primate eye morphology study
University of Melbourne — "Why we show the whites of our eyes"
Wikipedia — Cooperative eye hypothesis

🔬 SOURCES: PMC, eLife, Max Planck Institute, University of Melbourne, Nature, ScienceDirect