The hunters or the hunters: Human and hyena prey choice divergence in the Late Pleistocene Levant.

Hunting preferences reveal a great deal about the life of Paleolithic humans, and may reflect changes in human demography, technology, and adaptations to changing environments. However, the effects of hunting preferences and environmental availability are often conflated, stressing the need for comparisons to other predators that exploited the same environment. Manot Cave (Israel), preserved rich Early Upper Paleolithic (46-33 ka) human occupations, along with repeated spotted hyena (Crocuta crocuta) occupations, allowing us to compare anthropogenic and biogenic bone assemblages within the same space and time frame. We focused on the faunal remains retrieved in the middle of the cave (Area D), and conducted detailed taphonomic and zooarchaeological analyses. The Area D archaeofauna was dominated by Mesopotamian fallow deer (Dama mesopotamica) and mountain gazelle (Gazella gazella), which showed high abundance of carnivore damage. This and the carnivore-to-ungulate ratio, the presence of juvenile hyena and numerous coprolites match the criteria of a hyena den, confirming that the bone assemblage was created mainly by hyenas. Manot Area D thus reveals hyena prey choice in the Upper Paleolithic Galilee, which we then compared with human prey choice. Our results showed that hyena prey assemblages in Manot and elsewhere in the Levant were Dama-dominated while human assemblages were dominated by Gazella, demonstrating that hyenas and humans hunted different animal size groups, possibly in different habitats. We interpret this phenomenon as resulting from two possible scenarios: the emergence of projectile technology which may favor hunting in open environments, and niche partitioning derived by human-hyena competition. Hyenas were abundant and hunted unselectively while the anthropogenic record presents population turnovers and some dietary diversification. Whereas both scenarios are difficult to test directly with the available evidence, we argue that either one explains quite well the late Pleistocene archaeofaunal patterns in the Levantine record.

Extended longevity of DNA preservation in Levantine Paleolithic sediments, Sefunim Cave, Israel.

Paleogenomic research can elucidate the evolutionary history of human and faunal populations. Although the Levant is a key land-bridge between Africa and Eurasia, thus far, relatively little ancient DNA data has been generated from this region, since DNA degrades faster in warm climates. As sediments can be a source of ancient DNA, we analyzed 33 sediment samples from different sedimentological contexts in the Paleolithic layers of Sefunim Cave (Israel). Four contained traces of ancient Cervidae and Hyaenidae mitochondrial DNA. Dating by optical luminescence and radiocarbon indicates that the DNA comes from layers between 30,000 and 70,000 years old, surpassing theoretical expectations regarding the longevity of DNA deposited in such a warm environment. Both identified taxa are present in the zooarchaeological record of the site but have since gone extinct from the region, and a geoarchaeological study suggests little movement of the sediments after their deposition, lending further support to our findings. We provide details on the local conditions in the cave, which we hypothesize were particularly conducive to the long-term preservation of DNA-information that will be pertinent for future endeavors aimed at recovering ancient DNA from the Levant and other similarly challenging contexts.