Coprolite (image) American Society for Microbiology Caption This shows 1,500 year-old fossilized feces (coprolite) discovered in Vieques, Puerto Rico. "The study of the paleomicrobiome of coprolites supports the hypothesis of multiple ancestries and can provide important evidence regarding migration by ancestral cultures and populations of the Caribbean," says researcher Jessica Rivera-Perez. Credit Center of Archaeological Research of the University of Puerto Rico, Rio Piedras (use with attribution) Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.