A breakthrough study published in the Journal of Archaeological Science has utilized a new high-precision Nitrogen-14/15 isotope ratio analysis on skeletal remains from the Danube Valley. The research identifies a previously undocumented shift in dietary protein sources between 5800 BCE and 5500 BCE, suggesting a rapid transition from riverine resources to domesticated livestock that coincided with localized climate cooling.
By analyzing the bone collagen at a molecular level, researchers were able to distinguish between different types of animal proteins, revealing that early agriculturalists in the region developed sophisticated stall-feeding techniques much earlier than previously thought. This study provides a new template for understanding how early European farmers adapted their subsistence strategies to survive short-term environmental fluctuations during the early Holocene.