Research from Purdue University reveals that Neanderthals had a diverse diet that included not only large mammals but also maggots. This finding positions Neanderthals at the top of the food chain, comparable to apex predators like lions, while also highlighting the importance of fly larvae as a significant food source.
Anthropologist Melanie Beasley and her research team examined the chemical composition of Neanderthal bones to better understand their dietary habits. They focused on stable nitrogen isotopes, particularly Nitrogen-14 and Nitrogen-15, which serve as dietary indicators. Generally, plants have low levels of Nitrogen-15, herbivores accumulate some from plants, and carnivores, including top predators, exhibit the highest concentrations.
The analysis revealed that Neanderthal bones from various European locations exhibited high levels of Nitrogen-15, suggesting a meat-heavy diet. This raised questions among researchers since Neanderthals, like modern humans, cannot tolerate excessive protein intake without adverse effects, a condition known historically as “rabbit starvation.”
To understand this anomaly, the team considered alternative food sources. They noted that some Arctic Indigenous tribes consume maggots from decomposing meat, leading them to investigate whether maggots contributed to the elevated Nitrogen-15 levels observed in Neanderthals.
The researchers discovered that maggots feeding on decaying flesh contain significantly higher Nitrogen-15 concentrations—up to four times higher than those found in lions. To validate their hypothesis, they analyzed fly larvae consuming decomposing human muscle tissue. Their findings indicated that as tissue decomposes, lighter nitrogen isotopes escape as gases, enriching the remaining nitrogen in the maggots.
Notably, larvae collected during winter exhibited even greater Nitrogen-15 values, potentially due to the slower decomposition processes in colder temperatures. This suggests that consuming maggots alongside carrion could explain the isotopic patterns without the need for a purely hypercarnivorous diet.
The research team concluded, “In the particular case considered here of Eurasian Late Pleistocene hominins, we suspect that the high Nitrogen-15 values reflect routine consumption of stored decomposing fatty animal substrates laced with highly-enriched maggots.” This study, published in Science Advances, sheds new light on the dietary practices of Neanderthals, emphasizing their adaptability and resourcefulness in food procurement.
The implications of this research extend beyond understanding Neanderthal diets; they provide insight into the ecological dynamics of prehistoric environments and how early humans interacted with their surroundings. As we continue to uncover the complexities of Neanderthal life, studies like this help to paint a more nuanced picture of their existence.
