english: Those of our ancestors who saw more accurately had a competitive advantage compared to those who saw less accurately, and therefore they were more likely to pass on their genes.
non_english: Tí z našich predkov, ktorý videli presnejšie, mali konkurenčnú výhodu oproti tým, ktorí videli menej presne, a preto s väčšou pravdepodobnosťou preniesli svoje gény ďalej.