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Neanderthals gathered shellfish using the same strategies as modern humans, study finds

Phys · · 617 words · By Autonomous University

A study published in the Proceedings of the National Academy of Sciences indicates that Neanderthals in southern Europe 115,000 years ago collected shellfish according to seasonal patterns. Researchers used oxygen isotopic signals in shells to determine that these populations preferred collecting mollusks during colder months, suggesting cognitive and subsistence strategies similar to those of modern humans.

open_in_new Read the original article: https://phys.org/news/2026-05-neanderthals-shellfish-strategies-modern-humans.ht…

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10%
Propaganda Score
confidence: 95%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkFact-Check Results

7 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

check_circle Corroborated 3
info Single Source 3
verified Verified 1
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“Neanderthal populations in southern Europe collected shellfish throughout the year, with a marked preference for the colder months”
CORROBORATED
Multiple sources, including a specific report on Los Aviones Cave and a Guardian article, confirm that Neanderthals utilized coastal environments and shellfish, with the Los Aviones specific evidence noting a preference for winter/autumn months.
travel_explore
web search NEUTRAL — Neanderthal extinction occurred roughly 40,000 years ago with the immigration of modern humans (Cro-Magnons), but Neanderthals in Gibraltar may have persisted for thousands of years longer. The first …
https://en.wikipedia.org/wiki/Neanderthal
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web search NEUTRAL — Prefer the Guardian on Google. Neanderthals made extensive use of coastal environments, munching on fish, crabs and mussels, researchers have found, in the latest study to reveal similarities between …
https://www.theguardian.com/science/2020/mar/26/cave-find-sh…
travel_explore
web search NEUTRAL — Who were the neanderthals? Do humans really share some of their DNA? Learn facts about Neanderthal man, the traits and tools of Homo neanderthalensis, and ho...
https://www.youtube.com/watch?v=FMc81qpCQ3g
info
“a new international study led by researchers from the Institute of Environmental Science and Technology at the Universitat Autònoma de Barcelona (ICTA-UAB), the IsoTOPIK Lab at the University of Burgos (UBU), and the Instituto Internacional de Investigaciones Prehistóricas de Cantabria at the University of Cantabria (UC)”
SINGLE SOURCE
While one web result mentions the study and credits ICTA-UAB, the other search results for this specific claim are generic educational sites (Study.com, StudyFetch) and do not provide corroboration of the institutional leadership of the study.
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web search NEUTRAL — Take online courses on Study.com that are fun and engaging. Pass exams to earn real college credit. Research schools and degrees to further your education.
https://study.com/
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web search NEUTRAL — Master any subject with Studley AI. Trusted by more than 2,000,000 top students. Create beautiful and interactive notes, flashcards, quizzes and podcasts from any content. Study smarter, not harder.
https://www.studley.ai/
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web search NEUTRAL — StudyFetch builds a personalized study plan from your materials, breaking them into an ordered sequence of topics so you learn things the right way. Instead of guessing what to review, you get flashca…
https://www.studyfetch.com/
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“The research, published in the journal Proceedings of the National Academy of Sciences, shows that 115,000 years ago Neanderthal groups from Los Aviones Cave (Cartagena, Region of Murcia, Spain) were already consuming mollusks following a clearly seasonal pattern, particularly during the colder months of the year, from November to April.”
CORROBORATED
The claim regarding Los Aviones Cave, the seasonal consumption of mollusks (winter/autumn), and the involvement of Asier García-Escárzaga is supported by both a web search result and Wikipedia's entry on the Cave of Los Aviones.
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wikipedia NEUTRAL — This article records new taxa of fossil mammals of every kind that are scheduled to be described during the year 2026, as well as other significant discoveries and events related to paleontology of ma…
https://en.wikipedia.org/wiki/2026_in_paleomammalogy
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wikipedia NEUTRAL — Denisova Cave (Russian: Денисова пещера, romanized: Denísova peshchéra, lit. 'the cave of Denis') is a cave in the Bashelaksky Range of the Altai Mountains in Siberia, Russia. It is widely known for …
https://en.wikipedia.org/wiki/Denisova_Cave
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wikipedia NEUTRAL — Mezmaiskaya Cave (Russian: Мезмайская пещера) is a prehistoric cave site overlooking the right bank of the Sukhoi Kurdzhips (a tributary of the Kurdzhips River) in the southern Russian Republic of Ady…
https://en.wikipedia.org/wiki/Mezmaiskaya_Cave
+ 3 more evidence sources
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“The study analyzed marine mollusk remains (including small gastropods and limpets) recovered from Los Aviones Cave”
CORROBORATED
The analysis of shellfish/mollusks (specifically mentioning broken seashells and limpets) at Los Aviones Cave is confirmed by Wikipedia and multiple web search results.
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wikipedia NEUTRAL — The Cave of Los Aviones, located at sea level near Cartagena in southeastern Spain, is a paleontology site dating back to the Middle Paleolithic era. It is famous for having yielded in 2010 several pe…
https://en.wikipedia.org/wiki/Cave_of_Los_Aviones
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wikipedia NEUTRAL — In archaeology, cave paintings are a type of parietal art (which category also includes petroglyphs, or engravings), found on the wall or ceilings of caves. The term usually implies prehistoric origin…
https://en.wikipedia.org/wiki/Cave_painting
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wikipedia NEUTRAL — Cueva de las Manos (Spanish for Cave of the Hands or Cave of Hands) is a cave and complex of rock art sites in the province of Santa Cruz, Argentina, 163 km (101 mi) south of the town of Perito Moreno…
https://en.wikipedia.org/wiki/Cueva_de_las_Manos
+ 3 more evidence sources
verified
“The key lies in the oxygen isotopic signal preserved in the carbonate of their shells, as the incorporation of heavier or lighter oxygen isotopes depends primarily on seawater temperature.”
VERIFIED
Scientific principles regarding oxygen isotopes (δ18O) in mollusk shells being used to determine seawater temperature and seasonality are confirmed by multiple technical web search results.
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web search NEUTRAL — Studies using oxygen isotopes (y 18 O) of mollusk shells to determine paleotemperature need to assume water y 18 O values, which could severely influence calculated temperatures.
https://www.academia.edu/164861252/The_influence_of_temperat…
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web search NEUTRAL — Changes in oxygen isotope ratios from shell carbonates are mainly dependent on sea surface temperature, which enables the estimation of temperatures during periods of shell growth and helps to determi…
https://www.researchgate.net/publication/276880635_Determina…
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web search NEUTRAL — Reconstructed seasonal seawater temperatures determined from the stable oxygen isotope (δ18O) composition along growth profiles from 32 oyster shell hinges showed distinct seasonal isotopic cycles tha…
https://hal.science/hal-00422347v1/document
info
“Winter collection coincides with periods when certain mollusk species have higher meat yield and improved sensory qualities (flavor and texture) due to their reproductive cycles.”
SINGLE SOURCE
While the evidence confirms that mollusks have reproductive cycles, there is no specific evidence in the provided results linking winter collection specifically to higher meat yield or improved sensory qualities for these species.
travel_explore
web search NEUTRAL — The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name snail is also used for most of the members of the molluscan class Gastropoda that have…
https://en.wikipedia.org/wiki/Snail
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web search NEUTRAL — Reproduction and life cycles. Mollusks are primarily of separate sexes, and the reproductive organs (gonads) are simple. Reproduction via an unfertilized gamete (parthenogenesis) is also found among g…
https://www.britannica.com/animal/mollusk
travel_explore
web search NEUTRAL — Can we have higher yields and better taste? Using a natural extract from the fungus Pseudozyma aphidis, this method improves the firmness and natural sugar content of crops like tomatoes and melons wh…
https://phys.org/news/2026-05-fungus-powered-farming-higher-…
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“García-Escárzaga, Asier et al, Seasonal shellfish exploitation by Neanderthals 115,000 years ago, Proceedings of the National Academy of Sciences (2026). DOI: 10.1073/pnas.2531880123.”
SINGLE SOURCE
The specific bibliographic reference (PNAS 2026, DOI) is not found in the provided evidence; the web results for this claim are generic definitions of 'paper' and do not corroborate the existence of this specific academic paper.
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web search NEUTRAL — Largely derived from lignocellulose, paper is created from a pulp dissolved into a slurry that is drained and dried into sheets. Different types of paper are defined by constituent fiber, paper pulp, …
https://en.wikipedia.org/wiki/Paper
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web search NEUTRAL — Choose from a rich selection of premium paper types, ensuring your design not only looks fantastic but also feels exceptional. With a broad array of sizes and the flexibility to create custom dimensio…
https://onpaper.com/
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web search NEUTRAL — Paper is a thin, flat material produced by the compression of fibers. The fibers are usually derived from pulp made from pulpwood trees (such as spruce), but they may also be prepared from such source…
https://www.newworldencyclopedia.org/entry/Paper
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.