Researchers at Yale University and the University of Leicester have discovered an ancient solar observatory at Chankillo, Peru, dating back to the 4th century B.C. The site features a line of 13 towers aligned with the sun's position throughout the year, making it the oldest complete solar observatory in the Americas.
A new DNA study has identified significant genetic differences among Melanesian populations, tied to their island of origin and language spoken. The research, led by Temple University professor Jonathan Friedlaender, sheds light on the unique diversity of this region.
A team of researchers, led by Alyson Thibodeau and David J. Killick, used physical sciences techniques to analyze archaeological artifacts at the La Isabela settlement. They found that the silver-bearing ore brought from Spain was extracted using an improvised smelting process, contradicting earlier historical accounts.
A DNA study on ancient cave bear teeth found a sudden replacement of the mitochondrial DNA sequence around 28,000 years ago in the Ach Valley. The new genetic group is believed to have originated from neighboring bears who infiltrated the area after human migration and eventually became extinct.
Low birth numbers in early hominids combined with intense competition led to their extinction. Dr. Nina G. Jablonski reveals that environmental changes, such as shifting climate patterns, played a significant role in the demise of these ancient human ancestors.
A UCSB study found evidence of a nonconscious mechanism in the human brain that identifies genetic siblings based on cues guided by hunter-gatherer ancestors. This mechanism regulates feelings of altruism and aversion to incestuous relations, suggesting natural selection played a role in its evolution.
Researchers found fossil evidence of domesticated chili peppers in seven archaeological sites across the Americas, dating back 6,000 years. The discovery provides insights into ancient diets and suggests possible contact between distant cultures.
A new study reveals that biomedical researchers often use social and historical explanations to define race and ethnicity, rather than biological differences. The research highlights the imperfect science of defining ethnic groups and emphasizes the importance of considering structural inequalities in understanding health disparities.
A team of international experts, led by FSU's Dean Falk, has concluded that the 'Hobbit' is indeed a separate species closely related to Homo sapiens. The study found that the Hobbit's brain is highly evolved and unique, with advanced features distinct from microcephalic humans.
A new study in Current Anthropology examines the effect of genetically modified crops on farmers in Warangal District, India. The research reveals a pattern of 'agricultural deskilling' and reliance on social learning, exacerbated by the spread of Bt cotton seeds.
A team of researchers from Yale University and other institutions have discovered two 56-million-year-old fossils, including the most primitive primate skeleton ever described. The study reconstructs the base of the primate family tree, providing evidence that plesiadapiforms are the most primitive primates.
Robert Trivers, a Rutgers University professor, has been awarded the prestigious Crafoord Prize in Biosciences for his groundbreaking research on social evolution and conflict. The prize recognizes his foundational analysis of social behavior patterns in animals, which has inspired significant behavioral ecologists' work.
A 35,000-year-old European skull found in Romania has been analyzed, revealing that it exhibits both modern and archaic features. The discovery supports the idea of human evolution and suggests that early modern humans interbred with Neanderthals.
A 36,000-year-old human skull from South Africa confirms the 'Out of Africa' theory of modern human origins. The fossil provides critical evidence that modern humans migrated out of sub-Saharan Africa around this time.
The discovery suggests that modern humans migrated out of Africa and occupied parts of eastern Europe as early as 45,000 years ago. The findings are based on the analysis of stone tools, beadwork, and other artifacts found at the Kostenki site in Russia.
University of Florida researchers validate the use of mitochondrial DNA (mtDNA) to study ancient migrations and population sizes. By analyzing correlations between mtDNA diversity and protein variation, they demonstrate that mtDNA remains a useful tool for understanding population dynamics.
Scientists have deciphered the meaning behind mysterious faces on South Pacific artifacts, revealing that they may represent sea turtles. The research, published in the Cambridge Archaeological Journal, suggests that these ceramic portraits and wooden bowls display ideas about human origins and the divine.
A new study finds that 93% of gorillas at the Lossi Sanctuary in Congo were killed by Ebola during outbreaks in 2002 and 2003. The research suggests that targeted vaccination strategies could be effective in controlling the spread of the disease, which has devastated ape populations in Africa.
A recent study suggests that the emergence of diversified social roles for men, women, and children in Homo sapiens provided a competitive advantage over Neanderthals. This division of economic labor enabled modern humans to thrive in ecologically diverse tropical and sub-tropical regions.
A recent genetic study reveals that humans and Neanderthals shared a common ancestor around 706,000 years ago, but the two species diverged around 370,000 years ago. The study found no evidence of genetic admixture between Neanderthals and humans, contradicting previous theories.
The collaboration reveals that modern human and Neandertal DNA sequences diverged on average about 500,000 years ago. The sequencing team aims to reconstruct a draft of the 3 billion bases that made up the genome of Neandertals, shedding light on human biology.
Researchers analyzed human remains from grave sites and found high ratios of female-to-male remains at certain sites, suggesting the practice of raiding women was common. Many female remains showed signs of abuse, providing insight into the impact of warfare on local communities.
A recent University of Colorado at Boulder study reveals that Paranthropus robustus had a diverse diet including fruits, nuts, sedges, and possibly animals, casting doubt on the idea that its extinction was linked to its eating habits. The findings suggest alternative explanations for the species' demise.
A study reveals human-specific sequence changes in DNA sequences regulating nerve cell adhesion molecules, leading to the uniquely human features of brain development and function. The researchers identified accelerated evolution of conserved noncoding sequences near genes involved in neuronal cell adhesion.
Researchers at the University of Alaska Fairbanks are studying religiosity in northern Russia over the last two decades to understand how people deal with rapid social change. The project, led by Patty Gray, will explore the role of religion and spirituality in this context.
Scientists found that orangutans confined to resource-limited areas of Borneo had smaller brains than those living in more abundant Sumatra. The study suggests an evolutionary connection between food availability and brain size in primates.
University of Alaska Fairbanks Professor Larry Duffy has been awarded a National Science Foundation grant to develop a new polar science education course. The two-year project will help increase students' and the public's understanding of polar science through an interdisciplinary approach.
The study reveals that large-scale theatrical events helped ground community identities and imposed elite ideologies on the rest of society. The prominent role of state theater in Maya politics is centered around the images of supreme leaders, who were constantly evaluated by their subjects.
A new paper explores the theoretical biases that make Christians difficult for anthropologists to study. Joel Robbins argues that anthropology relies on a science of continuity, while Christianity emphasizes decisive breaks and temporal ruptures. This bias has neglected the social importance of Christianity globally.
A nearly intact 3.3 million year-old juvenile Australopithecus afarensis skeleton has been discovered, providing insights into the growth and development cycle of the species. The skeleton's unique blend of ape-like features and adaptations for bipedal locomotion will help researchers better understand human evolution.
A recent study by Erik Trinkaus reveals that modern humans possess twice as many uniquely derived traits than Neandertals, challenging the conventional understanding of human evolution. The research focuses on examining genetic markers in fossil records to better comprehend human ancestry.
The study reveals that 1- and 3-year-old children, as well as great apes, prefer a place-based strategy to remember hidden items, while humans reassess this preference with age. This suggests that some evolved cognitive strategies are masked early on in human development.
Researchers found that human infants and all great apes exhibit identical preferences for remembering where things are hidden. However, this preference shifts in 3-year-old human children, indicating a uniquely human developmental trajectory. The study provides insight into the evolution of human cognitive abilities and tendencies.
A new study found that ancient birds of prey like African crowned eagles likely feasted on some of our earliest human ancestors. The researchers analyzed over 600 bones from monkey skulls, which showed puncture marks and scratches consistent with the grip of an eagle's talons.
New radiocarbon dating reveals Maui's temples were built in cycles with warfare and island consolidation, shifting from open-air ancestral worship to elaborate sacrificial offerings. The findings provide insight into the economic, political, and ritual development of ancient Hawaiian civilization.
Researchers found great apes outperforming monkeys and lemurs in problem-solving tests across multiple paradigms. This suggests a broad, domain-general type of intelligence that allows them to succeed in various situations, contradicting the theory of specialized skills.
Johns Hopkins researchers show that psilocybin can induce mystical/spiritual experiences descriptively identical to those reported for centuries. Subjects who underwent the experience reported positive changes in behavior and attitude, lasting several months. The study's results have significant implications for our understanding of hu...
Recent study reveals social anthropology Ph.D. holders are highly employable, working outside academia in various fields, including international development and tech companies. Their special skills of observation and critical analysis are valuable assets in these settings.
A study of 169 Caucasian women aged 10-70 found that skin tone and luminosity significantly impact perceived attractiveness and age. Even skin tone was associated with higher ratings for health and youthfulness, while uneven tone added years to perceived age.
Researchers have long wondered how Chaco rulers controlled outlying communities, but a new book suggests that the Southwestern skies played a crucial role in establishing a 'line-of-site' system. The book explores Chaco's economy, politics, and history, shedding light on the culture's architecture and settlement patterns.
Researchers found evidence of ancient fig domestication at Gilgal I site, suggesting humans selectively propagated a parthenocarpic mutant around 11,400 years ago. This marked the beginning of agriculture and a significant change in human history.
Researchers found that gene expression levels become more variable with age in both humans and rats, supporting the notion of stochastic aging. The observed increases in expression variation are surprisingly small, leaving room for further explanations regarding the relationship between aging-related changes and molecular mechanisms.
A study found that when participants shared negative attitudes about someone else, they felt closer to a stranger with the same dislike. In contrast, those who learned they shared positive attitudes with another person felt less connected. This research challenges traditional views of gossip and its impact on relationships.
A recent study reveals that both Egyptian and Nubian officials participated in the administration of Nubia during this time. The findings challenge traditional ideas of unidirectional change and modification of a subordinate population by a socially dominant group.
The study reveals that during periods of warm weather globally, the Pacific was cold and dry. Conversely, during cold weather elsewhere, the Pacific experienced warm and stormy conditions. This ancient climate data informs modern concerns about climate change in the Pacific region.
A recent study has identified copy number variants in chimpanzees that are comparable to those found in humans, indicating regions of the genome may be inherently unstable in both species. This research provides valuable insights into genetic diversity and adaptations in our nearest relatives.
Scientists describe new genus of African monkey, Rungwecebus kipunji, after analyzing physical characteristics and molecular samples. The discovery sheds light on the evolutionary history of monkeys in Africa and Eurasia.
Researchers found that women can accurately determine a man's interest in children and testosterone levels from his facial expressions. This study suggests that a man's affinity for children is an important factor in his long-term mate attractiveness, even after accounting for physical attractiveness.
Researchers discovered that males of the extinct species Thyrohyrax had oversized, swollen lower jaws shaped like a banana, which may have been used to produce sound. The discovery suggests that Thyrohyrax and its fossil relatives were the only mammals to use this skeletal structure for sound production.
The 'Ethnicity and Democratic Governance' project, led by Queen's Professor Bruce Berman, explores the complexities of democracy in multi-ethnic states and how to accommodate linguistic and cultural diversity. The team aims to develop practical tools for managing ethnic conflicts and promoting social justice.
A study by Kermyt G. Anderson investigated the correlation between men's perceptions of fatherhood and actual paternity rates worldwide. The results show that men with high paternity confidence are indeed the biological fathers over 98% of the time, while those with low confidence are incorrect in more than 70% of cases.
A team of researchers, including biological anthropologists and physicians, studied the relationship between the brain and skull in infants with craniosynostosis using CT scans and MRIs. They found a strong correlation between neural structures located near the top of the brain and bony features at the base of the skull.
Scientists are using lead isotope analysis to study ancient copper artifacts from sub-Saharan Africa, providing insights into the spread of Islam and trade patterns across the Sahara Desert. The analysis reveals that merchants traded gold from regions like present-day Niger for copper from North Africa via camel caravans.
Researchers observed male chimps in Uganda's Kibale National Park using 'directed scratches' to request grooming of specific areas on their bodies. The study suggests that these primates may be capable of mental-state attribution, making inferences about the knowledge of others.
The Aldo Leopold Leadership Program provides mid-career academic scientists with critical skills to communicate effectively with decision makers and the media. The fellowship program, founded in 1998, aims to improve policymaking through sound information conveyed clearly and accurately.
Researchers discovered ancient ship timbers at Wadi Gawasis site, dating back approximately 4,000 years, indicating a 2,000-mile round-trip voyage to Punt, a southern Red Sea trading center. The findings confirm the Egyptians had the naval technology to travel long distances by sea.
A 14-year study of wild capuchin monkeys reveals that fathers almost never mate with their daughters, despite alpha males siring most offspring from unrelated females. This suggests the evolution of sophisticated behavioral barriers to prevent inbreeding within individual populations.
In a study at Ngamba Island Chimpanzee Sanctuary in Uganda, chimpanzees were found to understand when they needed help and chose the best collaborative partner. They recognized individual strengths and weaknesses among chimps, such as Mawa's poor cooperation skills, and consistently selected Bwambale as their preferred partner.
A new study examines the role of the 'showoff hypothesis' in social decisions among Hadza hunter-gatherers. Most participants chose to live with good hunters to gain access to more food and better nutrients, despite some men preferring poorer hunters to showcase their hunting prowess.
A new study compares handedness of medieval English villagers to modern-day sample, finding that active individuals display a high degree of asymmetry. Researchers used skeletal analysis to determine changes in hand preference over time, shedding light on the evolution of right- and left-handedness.