Ancient DNA evidence indicates that the advent of agriculture led to increased infectious diseases among humans, with pathogens from animals becoming prominent around 6,500 years ago. This DNA, extracted from human teeth, provides insights into the history of diseases in Eurasia over tens of thousands of years. Research highlights include findings on the Roman Empire's use of sardines in fish sauce and the identification of hotspots for antibiotic-resistance genes through animal manure analysis. A long-term study shows a connection between warming Arctic waters and increased toxic algae due to climate change.
DNA extracted from human teeth indicates that agriculture increased human exposure to infectious diseases. Pathogens from animals became prominent only 6,500 years ago in Eurasia.
A 19-year study of bowhead whale feces links rising ocean temperatures in the Arctic with increasing harmful algal blooms, highlighting the impact of climate change on marine life.
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