Articles tagged with Caves
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Researchers found thousands of hutia fossils in a Caribbean cave, including nests made from compacted soil and coated with a waxy substance. The discovery provides evidence of the presence of bees in the area thousands of years ago, challenging initial findings on wasp nests.
Genomic analysis reveals amblyopsid species lost vision between 2.25 and 11.3 million years ago, allowing researchers to estimate minimum age of caves. The study provides a unique method for dating underground ecosystems and may hold implications for human eye diseases.
A study using stalagmite analysis found eight wet season droughts lasting over three years between 871-1021 CE, contributing to the Maya civilization's decline. This climate data aligns with historical and archaeological evidence, providing a new framework for analyzing human-climate interactions.
Scientists have discovered a new copepod species, Tetragoniceps bermudensis, in Bermuda's cave system, revealing the fragile biodiversity of this unique ecosystem. The finding suggests limited geographic range and probable endemic status for the species.
A new study reveals that the Saharo-Arabian Desert experienced recurrent humid intervals over the past eight million years, supporting migrations of water-dependent animals, including early ancestors. These wetter periods likely sustained monsoonal precipitation from the South, which gradually weakened over millions of years.
Researchers analyzed ancient stone tools found in the Robberg caves, revealing specific methods of core reduction that indicate shared ideas among prehistoric people. The study suggests that these ancient humans were more connected than previously thought, with similar tool-making techniques found across different regions.
The Greater Mouse-Tailed Bat uses its long tail as a dynamic sensing tool to avoid obstacles and orient itself in complex environments, especially when vision and echolocation are limited. The study found that the bats' ability to navigate decreased significantly when their tail was numbed.
A study suggests that children were involved in creating prehistoric cave art due to their unique mental and cognitive traits, which allowed them to communicate with entities from the beyond. Children were believed to be liminal beings, bridging the gap between worlds, and delivering messages to non-human entities.
Scientists are using fluorescent features in caves to understand how life is supported in extreme environments. The research, presented at the American Chemical Society Spring meeting, explores the chemistry behind these unique formations and their potential applications in astrobiology.
A 30-meter sediment core from the Great Blue Hole in Belize provides the longest recorded storm frequency data for the Atlantic, with 574 storm events over 5,700 years. The research reveals a steady increase in tropical storms and hurricanes in the southwestern Caribbean due to climate change.
Researchers from the University of Oxford discovered that rainfall in the Sahara Desert increased between 8,700 and 4,300 years ago, coinciding with a rise in Neolithic archaeological sites. This finding highlights the importance of a favourable climate on early pastoralist societies, which relied on rainfall for their livestock.
Researchers discovered signs of human remains being manipulated and dissected, indicating cannibalism among Late Ice Age societies in Central Europe. The findings suggest that cannibalism may have occurred due to conflicts over resources or territories, rather than necessity.
A new study sheds light on intentional, symbolic engravings from Levantine Middle Palaeolithic sites, indicating advanced cognitive and symbolic behaviour among early humans. The findings provide key insights into the development of abstract thinking and cultural complexity of Middle Palaeolithic societies.
A new fungus, Gibellula attenboroughii, has been identified in Northern Ireland and the Republic of Ireland, infecting orb-weaving cave spiders. The fungus manipulates the spider's behavior, causing it to leave its lair and migrate to die in exposed situations.
A 35,000-year-old ritual complex in the Manot Cave offers insight into the spiritual practices of Paleolithic hunter-gatherer groups. The discovery reveals evidence of human-made engravings, ash remains from fire, and acoustic tests that suggest a unique auditory experience for communal activities.
Researchers from Case Western Reserve University discovered a large cavern in Manot Cave that was used as a gathering space for rituals, possibly enhancing social cohesion. The site features an engraved rock with a turtle-shell design, contemporaneous with some of the oldest cave paintings in France.
Researchers conducted a caving expedition to gather data on the effects of environmental stressors on human cognition, collecting useful insights despite logistical challenges. The study proposed a framework for future field-based cognitive science research, offering lessons beyond traditional lab settings.
Researchers have discovered preserved biosignatures in volcanic caves, including calcium and sodium sulfates, indicating past microbial activity. This finding highlights lava tubes as potential refuges for microbial life, shedding light on the search for extraterrestrial life on Mars.
Researchers have named two freshwater snail species, Idiopyrgus eowynae and Idiopyrgus meriadoci, after J.R.R. Tolkien's characters Éowyn and Meriadoc Brandybuck. The newly discovered species are troglobitic and have unique adaptations to their subterranean environment.
Scientists use modern technology to analyze ancient ochre samples, revealing the material's origin and history. This helps them understand how human cognition and social networks developed alongside early technological innovations.
A new study in PLOS ONE reports on the contents of 25 coastal and underwater cave sites in southern Sicily, uncovering three new sites with potentially important archaeological sediments. The findings provide key data for understanding the early expansion of Homo sapiens into the Mediterranean.
A study from Goethe University Frankfurt reveals that venomous crustaceans, specifically remipede crabs in Mexican cenote caves, contain a variety of toxins with pharmacological potential. The xibalbines peptides effectively inhibit potassium channels and activate signaling pathways involved in pain sensitization.
Researchers discovered a cache of rare monkey fossils in the Dominican Republic, providing new insights into the anatomy and ecology of the extinct Antillothrix bernensis. The study suggests that male and female monkeys were monomorphic and weighed up to five pounds, with a diet mainly consisting of fruit.
A new study reveals that possum shrimp rely on distinctive chemical cues from their underwater caves to find their way back. Researchers found that each cave had a unique water-borne odor bouquet, which helped the shrimp navigate between them.
A fossilized Neanderthal, nicknamed 'Thorin', lived in a small isolated community for over 50,000 years before the species' extinction. The discovery reveals two distinct Neanderthal populations coexisted without exchanging genes, challenging previous assumptions about their population structure.
A new study from the University of Copenhagen reveals that Neanderthals may have gone extinct due to their isolated lifestyle. The discovery of a male Neanderthal remains in southern France supports the hypothesis that small group sizes and limited genetic diversity contributed to their demise.
A team of Würzburg researchers is using a swarm of autonomous robots to explore the Martian canyon system, Valles Marineris. The robots will collect data on the canyon's geology and search for signs of liquid water and potentially life, shedding light on the planet's habitability.
A new study by University of South Florida geologist Bogdan Onac and colleagues has found that humans settled the western Mediterranean much earlier than previously believed. The discovery of a 25-foot submerged bridge, dated to nearly 6,000 years ago, provides compelling evidence of earlier human activity on Mallorca's island.
Researchers found that blind cavefish develop more taste buds on their head and chin, particularly after 18 months of age. This adaptation is thought to be an adaptive trait, allowing the fish to better detect food sources like bat guano.
A new study has discovered the world's smallest adult arm bone, dating back 700,000 years, which provides crucial evidence on the evolution of Homo floresiensis. The fossil, found at Mata Menge in Indonesia, suggests that early humans were even smaller than previously thought.
A team of international scientists has demonstrated the existence of a lunar lava tube cave, with radar reflections indicating an underground conduit in Mare Tranquillitatis. This discovery provides crucial evidence for safe site selection on the Moon and supports future exploration missions.
Researchers from Tel Aviv University discovered 400,000-year-old stone tools, Quina scrapers, used to butcher and process smaller game like fallow deer. The unique tools were made of non-local flint, likely sourced from the Mountains of Samaria, a calving area for the deer.
A study published in Nature Communications reveals that the Cerrado biome in Brazil is experiencing its worst drought in at least 700 years, caused by global warming. The research used chemical analysis of stalagmites to extend the perception of drought back seven centuries and linked it to disruption in the hydrological cycle.
A team of researchers from Griffith University has uncovered evidence of human occupation in a lava tube cave in northern Saudi Arabia, spanning the Neolithic to Chalcolithic/Bronze Age periods. The discovery sheds light on ancient pastoralist activities and cultural exchange along pastoral routes.
A recent study reveals that humans inhabited a lava tube in northern Saudi Arabia for thousands of years, with evidence of repeated occupation and a transition to oasis agriculture. The site provides valuable insights into the history of human settlement in the region.
Researchers analyzed well-preserved microbiomes from 4,000-year-old teeth in Ireland, providing a snapshot of oral health in the past. The study found evidence of dysbiosis and an unusual abundance of S. mutans bacteria, suggesting that our ancestors' mouths differed significantly from ours.
Researchers have recovered ancient microbiomes from 4,000-year-old teeth in Ireland, revealing major changes in oral microenvironments. The study identified bacteria linked to gum disease and provided the first high-quality ancient genome of Streptococcus mutans, a major culprit behind tooth decay.
Scientists will study neutrinos to solve big questions about the universe. UTA is building portions of two detectors in South Dakota and training students to help with the project.
Researchers at Uppsala University have discovered eight new deep-sea species of marine sponges in the Balearic Islands, increasing the ecological importance of the region. The study reveals a strong case for the inclusion of underwater mountains and caves within the Natura 2000 Network, emphasizing the need for conservation efforts.
An international study of 12 caves worldwide reveals that climate change could threaten the planet's largest freshwater reserves. The study found that temperature variations in caves reflect changes at the surface, posing a threat to unique and adapted organisms that maintain water quality.
Research on ancient brown bear genomes sheds light on how they survived the last Ice Age. Brown bears experienced extensive range reductions and regional extinctions, leading to significant genetic diversity loss.
By combining stalagmite analysis with tree-ring records, researchers have gained new insights into short-term climate fluctuations over centuries. The study reveals regional as well as global environmental events, including the Little Ice Age and the 'Year Without a Summer', providing valuable information on long-term climate patterns.
Researchers found a unique resonance phenomenon in the crevice cave that amplifies and lengthens sound at a specific frequency, which may have impacted beliefs associated with it. The study suggests that this resonance could be an exceptional sound phenomenon for the people living in the region centuries ago.
A collaborative effort between scientists from the Natural History Museum of Utah and cavers led to the discovery of fossils spanning over 3,000 years in Boomerang Cave. The findings revealed a faithful reflection of mammal diversity in the area, including species unknown to the region.
Two new bird species, the Australian vulture (Cryptogyps lacertosus) and a newly named eagle (Dynatoaetus pachyosteus), have been found in fossil deposits from over 50,000 years ago. The discovery sheds light on the extinction of megafauna and suggests that these birds may have played a key role in their demise.
A group of renowned experts has cast doubt on claims that Homo naledi deliberately buried their dead and produced rock art in Rising Star Cave, South Africa. The team suggests that natural agents and post-depositional processes may be responsible for the accumulation of bodies and the alleged engravings.
Researchers constructed the most complete map yet of the microbial communities in Yucatán's underwater caves, revealing distinct patterns and a core set of organisms performing key roles. The study found that Comamonadaceae, a family of bacteria typically found in groundwater systems, lived in several niches across the cave system.
Researchers discovered ancient shell beads stained with organic red pigment in an Israeli cave, dating back approximately 15,000 years. The findings represent the oldest known example of this type of coloration.
A nearly intact fossilized bat skull discovered in a 50-million-year-old cave has provided crucial insights into the evolution of bats and their use of echolocation. The find, part of an analysis published in Current Biology, suggests that early bats may have used a form of echolocation similar to that employed by modern species.
A UNLV study found that a warm period in the early Holocene, when temperatures rose, led to increased summer rainfall and groundwater recharge. The researchers used an ancient stalagmite to analyze precipitation patterns and estimate the potential impact of future climate change on monsoon rains.
Researchers at SLU discovered high concentrations of microplastics in Cliff Cave's water and sediment, with highest levels near the entrance and in sediment. Flooding increases microplastic transport through the cave system, depositing debris in higher abundances near the mouth.
Researchers analyzed over 400 bone remains from a Spanish cave, finding marks compatible with a cleaning process for instrumental use. The study supports the idea that prehistoric societies used human bones in rituals and cultural practices, dating back to the Neolithic period.
Researchers found evidence of intentional post-mortem modifications to human remains, including fractures and scrapes, at a cave in southern Spain. These alterations suggest that the ancient humans reused and repurposed their own burial sites for practical purposes.
Researchers have uncovered a major Palaeolithic cave art site in 'Cova Dones', Spain, with over 100 ancient motifs dating back at least 24,000 years. The site features a wide range of techniques and animal representations, including clay-based paintings.
Researchers have discovered fossils of ravens living alongside early humans in Beijing, dating back over 100,000 years. The findings suggest that ravens were resilient to climate change and provide valuable insights into the impact of environmental changes on bird populations.
New research suggests the Bidayuh people of Borneo created rock art depicting resistance to frontier violence in the 1600s and 1800s. The cave's large human figures have been dated using direct radiocarbon ages, providing valuable insights into this period.
Researchers uncover charcoal drawings at Gua Sireh Cave, dating back to the 1600s and 1800s AD, depicting Indigenous resistance to frontier violence. The site's unique artwork sheds light on the region's complex history of colonization and territorial violence.
A novel blind daddy long-legs spider was found in Western Australia's Pilbara region, marking the first cave-adapted species reported from the continent. Another extraordinary species was also described from Réunion island, with its closest relatives found in eastern Africa.
Researchers identified evidence of 39,000-year-old plant technology at Tabon Cave in the Philippines, revealing that prehistoric communities used fiber technology for textiles and cordages. This study pushes back the antiquity of fiber technology in Southeast Asia, highlighting the technological skill of prehistoric groups.
Researchers have identified finger-marks on a cave wall in France as the oldest known Neanderthal engravings, dating back to around 75,000 years ago. The marks were made using a plotting analysis and photogrammetry to create 3D models, confirming that they are deliberate, organized shapes created by human hands.