In Switzerland, a bold initiative is underway: freezing human feces to preserve global biodiversity. However, this isn’t just about safeguarding nature’s diversity of plants and animals — human gut biodiversity is also at stake. “We have discovered that we are losing biodiversity in the gut,” medical microbiologist Adrian Egli from the University of Zurich tells dpa. “There is much more diversity in Amazon populations compared to those in the West. This has to do with stress, antibiotics and diet.” Saving the stool “There are a thousand billion bacteria in one gram of stool, 125 times as many …