Urban incursions by large, undescribed hominoids have been mentioned in historical literature but rarely examined through a consistent analytical framework. This study reviews 5,834 reports drawn from three public databases and the author’s research records to identify observations of putative relict hominoids entering populated areas by ≥0.40 km. Forty-two reports met the geographic criterion, and twenty-five (59.5%) met the study’s credibility threshold for inclusion. These incursions occurred in areas with a mean population density of 2,118 people/km 2 , exceeding the U.S. city average of 1
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