Gut microbes followed migrating humans across continents, new study suggests

shocdye , a local fermented brew.'/> New research looks at the surprising similarities in the gut microbiomes of hunter-gathers in Tanzania and horticulturalists in Bolivia, and asks: What role do these bacteria play in human health? (Image credit: Michael Gurven) ### Source Reporting & Context - Primary Wire Service: NPR News - World. - Editorial Verification: Reporting corroborated against official primary wire disclosures. - Coverage Status: Ongoing monitoring by regional desk.