Scientists at OHSU successfully produced the world's first primate chimeric offspring, three baby rhesus macaques, shedding light on stem cell functions and abilities in primates compared to rodents. The research has significant implications for regenerative medicine, particularly in treating diseases like Parkinson's.
Researchers studied Campbell's monkeys and found that females pick up habits from each other through grooming and contact calls. The study suggests that human speech evolved gradually from ancestral primate vocalisations and social patterns, influenced by environmental factors rather than genetic predisposition alone.
In a study co-authored by Cornell University researcher Harry Greene, men are attacked by giant pythons but also target them for food, competing for the same local deer, wild pigs, and monkeys. The complex relationships between humans and snakes highlight broader patterns of predation and competition in the natural world.
Researchers at Albert Einstein College of Medicine have developed a novel antimalarial agent, BCX4945, which kills the deadliest malaria parasite by starving it of vital building blocks. The study shows promising results in non-human primates, paving the way for more potent therapies against this deadly disease.
Human relationships rely on endorphin rewards for motivation, unlike rodents which focus on oxytocin and vasopressin. The study suggests that endorphins enable complex relationship networks to endure and persist.
A study found that northern muriqui monkey mothers play a key role in their sons' reproductive success, with no evidence of inbreeding. The research suggests that this egalitarian society may be the reason for the species' critical endangered status.
Researchers have discovered a new therapy that increases good cholesterol and lowers triglycerides, showing promise in combating cardiovascular disease. The treatment, which targets microRNA-33, has been shown to increase HDL cholesterol and lower triglyceride levels in non-human primates.
Researchers have discovered a new Ebola-like virus, Lloviu, in bats from northern Spain, which is the first filovirus native to Europe. The study reveals that Lloviu may be a cause for concern as it was detected in deceased bats with signs of an immune response, but not in healthy bats.
Researchers found that meerkats can distinguish between individual calls in their species, contrary to previous assumptions. Meerkat colonies are highly organized and divide work into three roles, with this vocal recognition ability linked to auditory cues.
A new study has recovered and analyzed the oldest fossil evidence of fingernails in modern primates, confirming that small body size led to nail development. The discovery provides direct evidence for the evolution of nails in primates and sheds light on the origins of human-like characteristics.
Researchers at Georgetown University Medical Center have defined three distinct processing stages for human speech recognition, mirroring those found in non-human primates. These findings provide insights into the complex workings of the human auditory brain and its role in processing language.
Research in baboon primates shows that even moderate nutrient deficiencies during critical periods of development can damage the pancreas and predispose to type 2 diabetes. The study found that young baboons whose mothers were undernourished were more likely to develop prediabetes before adolescence.
In a study of moustached tamarins, researchers found that 75% of infants survive with male help, but only 41.7% without. Female infanticide occurs when mothers kill their own offspring due to social competition and high levels of prenatal stress.
A new study found that fetal exposure to BPA changes the development of the uterus in female primates. The research suggests that oral and subcutaneous forms of BPA can alter gene expression and affect uterine cell development.
Researchers found that females preferred to disperse from their natal groups, similar to chimpanzees and human groups. The study suggests early hominins' social structure was not like that of gorillas.
A previously unknown fossil primate, Mescalerolemur horneri, has been discovered in West Texas, dating back to the Eocene Epoch. The species is closely related to Eurasian and African adapiforms, challenging current understanding of North American primates.
Researchers at Oregon Health & Science University have developed a vaccine candidate that programs the immune system to respond swiftly to HIV, with over half of monkeys showing control over virus replication. The vaccine candidate has been shown to maintain control for over a year, outperforming antiretroviral therapy in clearing the ...
A study demonstrates that monkeys can recall and reproduce simple shapes from memory, mirroring the performance of humans using a standard recall test. This finding suggests that recollection might be an adaptive ability in primates long before humans evolved.
A new evolutionary history of primates reveals complex patterns of species divergence and gene sequence evolution. The analysis provides a validated framework for understanding human adaptation and disease, and sheds light on zoonoses and primate conservation.
Researchers compared aging patterns of seven species of wild primates with humans, finding that human aging rates fall within the primate continuum. The study also confirms the mortality gap between males and females is narrowest for the least aggressive species.
A new study of primate aging patterns reveals that humans are not unique in their aging process. By analyzing data from seven species of wild primates, researchers found that human mortality rates increase with age at a similar rate to other primates. The study also confirms the long-held pattern that males die sooner than females as t...
A new multi-species comparison of primate aging patterns reveals that chimps, gorillas, and other primates grow old gracefully like humans. The study confirms a mortality gap between males and females, with males dying sooner than females in most species.
A new study reveals that Alu elements inserted into existing genes can alter protein production rates, contributing to evolutionary differences between humans and other primates. The research uses high-throughput RNA sequencing data to quantify the frequency and location of Alu-derived exons in human genes.
Researchers found that hand-raised wolves can follow a gaze around an obstacle, indicating a more cognitively advanced task than previously observed. The wolves' ability to detour an obstacle suggests that gaze following is not exclusive to primates and corvids.
Researchers have identified a new way genes are regulated that is unique to primates, involving Alu elements and long noncoding RNAs. This mechanism could prove to be a valuable treatment target as researchers seek to manipulate gene expression to improve human health.
A team of scientists has mapped the genome of orangutans, providing a new tool for conservation efforts and shedding light on the evolution of primates. The study reveals unique features of the orangutan genome, including fast-evolving genes related to visual perception and metabolic processes.
A groundbreaking study led by LSU's Mark Batzer has decoded the orangutan genome, revealing unexpected insights into its evolution and genetic diversity. The research found that two distinct orangutan species exist, with one species having limited genetic diversity due to a condensed habitat.
A study found that primate immune system differences explain why humans are more susceptible to certain viral infections, such as HIV and hepatitis B. Genomic comparisons revealed unique gene expression patterns in humans compared to chimpanzees and rhesus macaques.
Research finds that dominant animals in primate societies have higher parasite loads due to suppressed immune systems. Frequent aggression and contact with other animals may contribute to the risk of infection.
A Queensland University of Technology (QUT) statistician has found that villagers who live alongside orangutans are unaware of the laws protecting them, and many admit to killing the primates. The study suggests education campaigns tailored to specific areas and cultural groups can effectively target orangutan hunting.
A study of Neanderthal and early human teeth reveals that modern humans' slow development and long childhood are recent traits. This may have given early humans an evolutionary edge over Neanderthals, facilitating additional learning and complex cognition.
Researchers discovered that connections in the spinal cord regrew spontaneously and extensively after a mild spinal cord injury in primates, restoring 60% of original connections. This finding holds significant promise for developing new treatments for patients with spinal cord injuries.
A new discovery in Libya's Dur At-Talah escarpment suggests that anthropoids colonized Africa from Asia, rather than evolving there. The site yields three distinct families of anthropoid primates that lived in North Africa around 39 million years ago.
Researchers have found that Labidolemur kayi shares similarities in bone features with other mammals, indicating its living relatives are rodents, rabbits, flying lemurs, tree shrews and primates. The study provides valuable information for understanding the origin of primates.
A 55-million-year-old extinct mammal, Labidolemur kayi, has been found to share a common ancestor with rodents and primates. The study reveals minute details in the skull, including bone structures smaller than one-tenth of a millimeter, which provide valuable information for understanding the origin of primates.
Researchers at University of Wisconsin-Madison have found rhesus macaques can recognize themselves in a mirror under specific conditions, contrary to previous assumptions. This discovery may refine the use of the mark test and challenge existing theories on self-awareness in primates.
Researchers found that environmental factors like temperature and light are equally important to the Azara's owl monkeys' natural rhythms as their internal biological clock. The study suggests that moonlight is a key adaptation for primates to exploit the nocturnal niche, with activity patterns changing in response to lunar cycles.
A new study led by Ned H. Kalin of the University of Wisconsin-Madison School of Medicine and Public Health found that increased brain activity in the amygdala and anterior hippocampus can predict anxious temperament in young primates. This discovery may lead to new strategies for early detection and treatment of at-risk children.
Research in Guinea reveals why chimpanzees attack humans, highlighting the importance of habitat conservation to prevent resource-based attacks. The team studied eleven attacks, finding that they occurred during periods of crop-raiding and food scarcity.
A study of orangutans found they used remarkably low energy levels, similar to those of sloths. This adaptation may be an evolutionary response to food shortages in their native rainforests, where ripe fruit is unpredictable and scarce.
A Duke University study found that hormonal contraceptives alter the chemical cues used by ring-tailed lemurs to determine genetic fitness and relatedness. The study also showed that males are less interested in females treated with contraceptives, suggesting potential effects on human mate choice.
Researchers documented a wild cat species imitating the call of its intended victim, a small monkey known as a pied tamarin, to draw it within striking range. The behavior was confirmed through observations in the Amazonian forests of Brazil, providing insights into the psychological cunning of wild felids.
A team of researchers discovered a strong sex-chromosome bias in the distribution of transposable elements, which may hold clues to genetic disease mechanisms. The study suggests Alu sequences integrate mostly in the male germline, while L1s integrate in both male and female germlines or early embryogenesis.
A symposium at the American Association of Anatomists' Annual Meeting explores the evolution of human evolution through ancient mummies, skulls, and bones. Modern technology enables researchers to examine mummified remains without harming tissue, providing insights into disease evolution and death causes.
Catalan researchers have found a new species of primate, Pliopithecus canmatensis, in the Vallès-Penedès basin. The discovery sheds light on the evolution and dispersal of this extinct family of primitive Catarrhini primates from Africa to Eurasia.
Researchers tracked monocytes in primates infected with simian immunodeficiency virus to find that increased turnover predicts rapid AIDS development and brain disease severity. The study identifies a marker, soluble CD163, exclusive to monocytes, which correlates with disease progression.
Mammals that spend most of their time in trees have longer lifespans than those on the ground, according to a new study. The researchers found that arboreality reduces extrinsic mortality, leading to longer lifespans.
A team of scientists found that brain size evolved differently in various primate lineages, with some species experiencing decreases in brain mass despite larger body sizes. This challenges the long-held assumption that evolution always results in bigger brains.
Researchers reconstruct primate brain evolution to clarify the Hobbit's brain size, suggesting a strong selective advantage for increased brainpower. The study supports the hypothesis that the Hobbit's small brain was adapted to local ecological conditions on Flores.
A new model for primate origins suggests that major groups are correlated with Mesozoic tectonic features and evolved from a widespread ancestor in Pangea. The theory incorporates spatial patterns of primate diversity and distribution as historical evidence, avoiding previous limitations to fossil record and molecular clocks.
Scientists used a novel approach to determine the age of first molar emergence in apes, revealing ages similar to those of modern humans. The study's findings have implications for understanding human life history and evolution.
A study by Duke University researchers discovered a commonality in the genetic codes of human sex receptors and those found in other primates. This similarity suggests that varying sensitivity to specific odors may play a role in mate selection, potentially preventing cross-species couplings.
Humans uniquely susceptible to aging diseases due to genetic adaptations to inflammation and high cholesterol diets. The 'meat-adaptive gene' ApoE3 may contribute to human lifespan, while ApoE4 impairs neuronal development and shortens lifespan by four years.
A study demonstrates the effectiveness of a gene delivery strategy producing follistatin, which inhibits myostatin, in non-human primates, showing pronounced increases in muscle size and strength. The treatment is well-tolerated and has long-term effects, paving the way for potential clinical trials.
A study by the Cell Transplantation Center of Excellence found that autologous brain cell transplants can provide brain protection and repair neural damage in donor primates. The cells survived at an impressive 50% rate for four months post-implantation, offering a promising new approach to treating neurological disorders.
Researchers analyzed global warming's impact on four New World monkey species, finding a significant drop in their populations during climate fluctuations. The team used statistical models to investigate how food resources and tree responses related to temperature and rainfall patterns.
Using electrophysiological recording techniques, researchers found neurons tuned to fundamental frequencies and harmonic sounds in awake monkeys. This discovery sheds light on the neural mechanisms of music processing and its potential therapeutic benefits for patients with severe neurological disorders.
A study by Christine Drea and Allisa N. Carter found that spotted hyenas cooperate successfully on tasks requiring unison effort, learning quickly with no training. They demonstrated understanding of rope timing and platform coordination, with social factors influencing performance.
A new rabies vaccine has shown to induce a rapid and efficient immune response in mice and non-human primates, potentially reducing the six-shot post-exposure regimen to just one inoculation. The experimental vaccine lacks a key gene called the matrix (M) gene, inhibiting the virus from completing its life cycle.
Researchers found novel human genes that originated from non-coding DNA in flies, yeast, and primates, with approximately 18 human-specific genes estimated to have arisen during human evolution. These genes are unlike any other human genes and may play a crucial role in human-specific traits.