Coverage dated October 12, 2026

Stanford Scientists Discover We’ve Lost Ancient Gut Microbes That Traveled With Humans for Thousands of Years

Headline from SciTech Daily

Scientists comparing the gut microbiomes of two geographically distant populations uncovered surprising similarities despite thousands of years of separation. Hundreds of bacterial species missing from modern human guts may have accompanied our ancestors for tens of thousands of years.

SciTech Daily's own description from its feed. We collect headlines and these descriptions, not full articles; read the original reporting below.

Reports & sources

2 articles, oldest first.

  1. SciTech Daily

    Stanford Scientists Discover We’ve Lost Ancient Gut Microbes That Traveled With Humans for Thousands of Years (opens SciTech Daily)

    Published

    SciTech Daily's feed description

    Scientists comparing the gut microbiomes of two geographically distant populations uncovered surprising similarities despite thousands of years of separation. Hundreds of bacterial species missing from modern human guts may have accompanied our ancestors for tens of thousands of years.

  2. The Boston Globe

    Was the human gut healthier in ancient times? (opens The Boston Globe)

    Published

    The Boston Globe's feed description

    Researchers identified more than 600 species of bacteria that may once have been common in the gut but are now rare or missing entirely from people in most societies today.

Stanford Scientists Discover We’ve Lost Ancient Gut Microbes That Traveled With Humans for Thousands of Years | Since Then