Scientists have found about 2,400 different germs living in the human belly button.
Notes on verification
Confirmed by peer-reviewed study (PLOS ONE, 2012) and corroborated by NC State University press release, National Geographic, and AMNH. Figure is a reasonable rounding of the documented 2,368 phylotypes found in the Belly Button Biodiversity Project. [tier=gold indep_score=0.9 clusters=4 claim_tier=notable]
Sources
- Fascinating Facts About Your Body - WebMD (seed:health_and_medicine)
- https://www.nationalgeographic.com/science/article/121114-belly-button-bacteria-science-health-dunn (corroboration)
- https://news.ncsu.edu/2012/11/wms-belly-button-biodiversity/ (corroboration)
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3492386/ (corroboration)
- https://www.amnh.org/explore/news-blogs/belly-button-microbiome (corroboration)