Early Neanderthals Pursued Ibex on Steep Mountain Terrain

Ibex can navigate gracefully across steep mountain terrains

Serge Goujon/Shutterstock

Nearly 300,000 years ago, Neanderthals had already devised strategies for hunting goats on vertical cliffs and managing them in well-structured camps.

Typically recognized for ambushing large animals in flat meadows and forests of Western Europe, Neanderthals seemed to adapt to the hilly landscapes of Eastern Europe by incorporating the lightweight ibex into their hunting practices. Early humans skinned these animals in nearby caves, but only after the bones had been covered and fractured. Stephen Milosevic from the University of Belgrade in Serbia.

“The approach to hunting ibex is entirely distinct since they inhabit robust, steep, and barren terrains,” he explains. “Now we observe primitive Neanderthals who barely distinguish themselves as a separate species, already utilizing an ecological niche previously unexploited by humans.”

Neanderthals evolved approximately 400,000 years ago, yet most of our knowledge stems from sites in Western Europe that are under 150,000 years old. According to Marie Helen Monsel, who was not involved in this research at the National Museum of Natural History in Paris, it’s crucial to uncover clues that can bridge the gaps in our understanding of Neanderthal timelines, habitats, and cultures.

In 2017, archaeologists uncovered evidence that Neanderthals inhabited the layers of Belikabaranica Cave in Serbia, which date back roughly 290,000 years, making it the oldest remains of Neanderthals found in Eastern Europe.

Since that discovery, Milosevic and his colleagues have excavated hundreds of stone tools and analyzed the bone fragments of approximately 30,000 animals within the cave. Almost three-quarters of these fragments are less than two centimeters long, with the majority traceable to ibex and red deer hunted in spring and summer, indicating that Neanderthals likely resided in the cave seasonally.

Some bones, particularly those from the legs of larger deer, exhibited burn marks and were cracked open. This suggests that these early Neanderthals may have liquefied the bones, leaving remnants scattered on the walls surrounded by the grease that fueled their fires. Others may have shown signs of tendon harvesting for use in ropes or nets.

The deer remains indicate the presence of older youths and adults, pointing to selective hunting practices that would promote herd survival, according to Milosevic. However, ibex were hunted at all life stages. Neanderthals seemed to be “novices” when it came to hunting goats, implying they likely relied on sharp sticks and rudimentary traps. “They must have experienced a significant number of failed attempts,” he notes.

Apart from these favored food sources, researchers have also found several remains from wild boars, cave bears, wolves, foxes, leopards, and even various birds.

The arrangement of the bones in various sections of the cave indicates a clear division of tasks. For instance, the hearth was located centrally, with discarded bones stacked behind it, while the entrance appeared to function as a tool workshop.

In summary, the findings suggest “notable cognitive flexibility,” states Jose Carrion from the University of Murcia in Spain. “This confirms that Neanderthals are creative problem-solvers who effectively navigate complex habitats with ingenuity and skill. Neanderthals were indeed human. They were intellectual, social, and highly adaptable.”

“The discoveries from Baranica provide a glimpse of Neanderthals who not only display resilience but are experimenting with strategies and social structures typically associated with later periods,” commented Antonio Rodriguez Hidalgo from the Archaeological Institute in Merida, Spain. “This reminds us that Neanderthal sophistication is not a gradual developement but rather a deep-rooted flame that ignited early in human history.”

Neanderthals, ancient humans, cave art: France

Join new scientist Kate Douglas on an enchanting journey through time as she explores significant Neanderthal and Upper Paleolithic sites across southern France, from Bordeaux to Montpellier.

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Source: www.newscientist.com

Alpine ibex are becoming more nocturnal as the climate warms up

Ibex can be at risk from wolves if they move around at night

robert andrighetto

Alpine ibex have become increasingly nocturnal to escape rising daytime temperatures, despite the increased risk of encountering predators.

Animals living in cold regions are expected to be greatly affected by rising global temperatures due to climate change. Alpine Ibex (capra ibex), usually seen grazing during the day in the European Alps, is one such animal.

To see what the impact was, Stefano Grignorio Researchers from the University of Ferrara in Italy tracked 47 individuals in Italy's Gran Paradiso National Park or Swiss National Park from May to October between 2006 and 2019. The animals were fitted with collars equipped with movement sensors.

Researchers found that warmer daytime temperatures made ibex more active at night. Grignolio said the discovery was surprising because doing so increases the chances of encountering wolves, one of their main natural enemies.

“Global warming seems to be driving their behavior changes dramatically,” he says. “Predation is just a variable.”

The ibex, a climate-sensitive animal, has probably shifted to a more nocturnal schedule to avoid the heat. Warmer daytime temperatures mean your body needs to expend more energy to cool itself compared to the energy needed to stay warm at night, Grignolio says.

However, while this response may help ibex cope with warmer climates, it may not be a viable long-term solution for ibex. “[They] may not be able to meet their demands [dietary] If they become too nocturnal or have increased predation, their requirements will not be met.” Niels Martin Schmidt At Aarhus University, Denmark.

“This study successfully quantifies some of the more subtle and often overlooked responses to climate change,” Schimdt says.

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Source: www.newscientist.com