Ancient parasites suggest humans migrated to the Americas via warm sea routes
In short: A review of paleoparasitological evidence suggests that certain intestinal parasites did not arrive in the Americas via land bridges. Researchers found that common human parasites, such as roundworms and whipworms, were present in pre-Columbian archaeological sites but could not have survived the cold climates encountered during a migration across the Bering Land Bridge.
The study analyzed findings of helminth and protozoa eggs in ancient feces from both Old and New World archaeological sites. By identifying these specific parasites, researchers can reconstruct historical human movement patterns.
Because these parasites require warm soil temperatures to complete their life cycles, their presence in the Americas suggests a migration route that avoided glacial regions. However, as this is a review of existing literature and new findings, it relies on the interpretation of archaeological samples rather than direct observation of migration.
Why it matters: Microscopic parasites can serve as biological clues to map the ancient movements of human populations across continents.
Opens the Intellect+ feed with this card first. Swipe up for the next one.
Sources
- Source: Research: Goncalves et al. (2003). Human intestinal parasites in the past: new findings and a review. Memórias do Instituto Oswaldo Cruz. · cc-by-nc
To cite this card, link to https://intellectplus.co.uk/app/history-research-ancient-parasites-suggest-humans-migrated-to-the-americas-vi.
How we source, check and correct cards: Editorial standards.
General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.
Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?
Related
More in Archaeology · More in History · Latest · A–Z · All topics
