Analysis of chemical signatures in ancient aurochs teeth from 120,000 years ago shows differences in where they lived and what they ate, suggesting they came from multiple groups rather than one herd...
Mechanism
Synthesis from 1 study
Each aurochs’s teeth recorded the food and water it consumed over its life, like a chemical diary. When scientists looked at many teeth, each one told a different story — some ate plants from one area, others from far away. This means the animals didn’t all live together and get killed at once —...
Most probable mechanism
As aurochs grow, their teeth form in layers that trap chemical signatures from the food they eat and the water they drink in different places. If animals lived in one area and ate the same plants their whole lives, their teeth would show the same chemical pattern. But if they moved around and ate different things in different places, each layer of their teeth shows a different pattern. This means they didn’t all live together in one group and get killed at once — they came from many places over time.
Strontium and oxygen isotope ratios in tooth enamel are incorporated during enamel formation and reflect local geology and water sources consumed during development
Carbon and nitrogen isotope ratios in tooth enamel record dietary composition, including plant types and trophic level, as these isotopes are transferred from consumed vegetation and water into mineralized tissue
Sequential sampling of enamel layers along the tooth crown reveals temporal changes in isotopic signatures, indicating shifts in diet and geographic location over the animal’s lifetime
High inter-individual variation in isotopic profiles across multiple aurochs indicates distinct lifelong mobility patterns and feeding ecologies, inconsistent with a single herd sharing a common habitat and diet
Evidence from Studies
Supporting (1)
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Archaic humans in the Middle Palaeolithic Levant conducted planned and selective intercepts of aurochs, but not mass hunting
Contradicting (0)
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Gold Standard Evidence Needed
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