Articles tagged with Evolutionary Developmental Biology
Researchers found a simple patterning cascade model that accounts for shifts in molar evolution during hominin origins, predicting variations in molar configuration based on embryonic signaling cells. The study suggests small, subtle tweaks to developmental toolkit can result in complex anatomy.
The geologically oldest fossil of the genus Archaeopteryx, dating back 150 million years, has been found in Northern Bavaria. The new specimen exhibits unique features that differentiate it from other known specimens, providing a reliable diagnosis for distinguishing Archaeopteryx from its closest relatives.
Researchers successfully created a fully functional extra eye in the center of a beetle's head using a simple genetic tool. The study provides new insights into how developmental processes reorganize to create novel complex traits, and could help address fundamental questions in development, evolution, and medicine.
Researchers discovered that bladderwort traps suck in prey like water fleas at incredible speeds, decelerating them before trapping. Comparative analyses of different species revealed unique trap entrance structures and movement patterns adapted to various habitats.
A new study reveals that birds' skulls evolved differently from their relatives, resembling those of young dinosaurs and crocodiles. The team's analysis suggests that adult modern birds retain features of 'young' dinosaur ancestors, such as proportionally larger brains and eyes.
Researchers at IMIM have found that immunoglobulin M plays a crucial role in regulating the diversity of intestinal flora, including beneficial microorganisms. The study highlights IgM's participation in an immunological memory system, enabling organisms to adapt to their microbial environment.
Researchers from the Universities of Cape Town and Bonn suggest that warm-bloodedness may have originated 20-30 million years ago in land animals. This is based on analysis of long-extinct animal fossils, which show signs of fibrolamellar bone structure indicative of warm-bloodedness.
A new study found that 3-year-olds can coordinate actions with others in joint tasks, understanding these as collaborative commitments. Children protest when a partner defected selfishly but are less upset by accidental or ignorant defections.
In this study, researchers created physically embodied robots to examine the interaction between genetic and epigenetic factors in robot evolution. The results show that robot populations with an epigenetic factor evolved differently than those without, highlighting the importance of including epigenetic factors in robot evolution.
A new study suggests that musical scales may have evolved to accommodate the variability of the human voice, rather than the perfect tuning of instruments. This theory has implications for understanding the development of singing and speech production in tone languages.
A new study analyzing ancient horse fossils reveals that patterns of migration and environmental changes are key drivers of evolutionary development. Contrary to the rapid phenotypic evolution theory, researchers found no significant difference in body size evolution between lineages with high and low speciation rates, suggesting that ...
A Norwegian ground-breaking study reveals that the mouth and anus do not originate from a common blastopore as previously thought. The research suggests that the formation of either organ is a consequence of how each embryo is organized during early development.
A new study shows that the planktonic organism Oikopleura dioica has lost most of its genes related to retinoic acid metabolism, a vital molecule for vertebrate physiology and embryonic development. This finding challenges the idea that evolution always requires more complexity or number of genes in living beings.
The 1815 UK geologic map, created by William Smith, is still remarkably accurate two centuries later due to its innovative features. The map's accuracy can be attributed to a combination of creative individuality, technological advancements, and favorable taxation laws.
A new study by Lund University finds that assortative mating actually breaks down the sexual barrier between closely related species, leading to potential hybridization and extinction. Large females' reproductive capacity explains their attractiveness to smaller males' species.
Fossils of an extinct 'storyteller' crocodylian from Peru show evidence of parallel evolution of river-dwelling lifestyle and protruding, telescoped eyes in South American and Indian species. The study suggests that these features evolved separately to help catch fish in habitats.
A team of researchers, led by IU biologist Armin Moczek, will systematically study proposed extensions to the theory of evolutionary biology. The $1.25 million grant aims to test assumptions and predictions of a new framework that recognizes environmental signals in organism development.
A new study led by Alistair Evans of Monash University found that molars follow the inhibitory cascade rule, simplifying human tooth evolution. The team can now predict the size of missing fossil teeth using this rule.
James F. Kasting receives the award for his work on planetary atmospheres and habitability, providing insights into the origin of life on early Earth and the search for life on other planets
Researchers at Boston University School of Medicine used non-invasive Magnetic Resonance Imaging (MRI) to detect vulnerable atherosclerosis plaques, which can lead to heart attacks and strokes. The study showed that MRI can discriminate between high-risk and stable plaques at early stages.
Researchers propose a working definition of curiosity as a drive state for information, which can be observed in organisms as simple as nematode worms. They also discuss the benefits and drawbacks of curiosity, including its role in learning and decision-making, and how it relates to attentional disorders.
A study published in Current Biology found that people subconsciously change their walking patterns to expend the least amount of energy possible. By wearing robotic exoskeletons and altering resistance levels, researchers showed that participants adapt their step frequency to converge on a new energetic optimum within minutes.
A Pitt researcher used gene regulatory networks to uncover the origins of a recently evolved structure in male fruit flies, finding that it was created by reusing existing networks during development. This discovery sheds light on how complex animal forms arose and challenges the idea that new structures must be encoded by new genes.
Research found that cheek-padded males are significantly more successful in fathering offspring, with dominant males having greater reproductive success during their tenure as dominant. However, other males were able to sire offspring during periods of rank instability or at the beginning and end of a dominant male's reign.
The Genetics Society of America has awarded prizes to undergraduate and graduate students who presented research on Caenorhabditis elegans at the recent meeting. The awards recognized innovative work in various fields, including cell biology, development and evolution, gene regulation and genomics, neurobiology, and physiology.
A recent study published in the journal genesis reveals an intact Hox cluster in the Crown of Thorns starfish, which is a surprising result given the relatively disorganized clusters found in sea urchins. This finding has implications for understanding evolutionary-developmental biology and may suggest new methods for mitigating damage...
Researchers found that subtle shifts in frontal and parietal lobes of the brain are linked to superior cognition. The frontoparietal network plays a key role in analysis, memory retrieval, abstract thinking, and problem-solving.
A new study highlights the need for better implementation of evolutionary approaches to address societal challenges. The research suggests that applying evolutionary biology can help reduce the escalating problem of antibiotic resistance and chronic disease costs.
Researchers found that a combination of developmental and biomechanical problems prevents evolutionary change in the number of trunk vertebrae in fast running and agile mammals. In contrast, these problems barely affect slow and sturdy mammals.
A new study revisits the evolution of pollen development in flowering plants, finding that both bi- and tricellular lineages gave rise to each other, debunking the long-standing assumption of one-way evolution. Tricellular lineages are slower-evolving but still advantageous in certain lifestyles.
Researchers propose that fins and limbs develop from the area surrounding the belly due to the interaction of ectodermal tissues with mesoderm layers. This model, published in Evolution & Development, suggests that epigenetic factors play a crucial role in shaping embryonic development and ultimately giving rise to paired appendages.
Researchers at Max Planck Institute for Evolutionary Biology find gene eud-1 that determines wide-mouthed predators and narrow-mouthed bacteria eaters, providing insight into phenotypic plasticity. The discovery sheds light on how organisms adapt to changing environments and challenges current understanding of evolutionary adaptations.
Researchers have uncovered the evolutionary past of psychedelic mushrooms by studying their molecular and morphological traits. The study classifies 'magic' mushrooms into different families based on shared secondary metabolites, indicating a complex history of evolution and adaptation.
Six new papers in Geosphere explore the geology of North America, focusing on the Colorado River sediment budget and its link to uplift and erosion. The papers also examine the magmatism, ash-flow tuffs, and calderas of the western Nevada volcanic field, shedding light on ignimbrite chronology and caldera formation.
Researchers discovered that birds have normally developing penises in early embryos but lose them through a genetic program, suggesting possible benefits for reproductive control. The study highlights the importance of programmed cell death in developmental processes and may provide insights into medical questions.
A recent study by a team of researchers from Texas A&M University and Binghamton University has found that prehistoric ear bones could provide clues about human evolution. The discovery sheds new light on the development of modern humans and highlights the importance of studying ancient fossils.
A study by North Carolina State University scientists has found that a cannibalistic tadpole's digestive organs can be transformed into those of a carnivorous frog using small molecules, revealing insights into the evolution and development of gut morphology. The research may also lead to better diagnosis and prevention of intestinal b...
A team of researchers developed a 3D simulation to study the evolution of complex organs, revealing that not all aspects of form are fine-tuned by evolution. The study highlights the complexity of genetic interactions and how natural selection influences body form.
Researchers sequenced soft-shell turtle and green sea turtle genomes to study evolutionary history and development of unique anatomical features. They found evidence that turtles diverged from archosaurians around 267.9-248.3 million years ago and developed superior olfaction ability.
A 370-million-year-old fossil fish with paired anal fins has been found, providing a unique window into the evolution of vertebrates. The discovery sheds light on the developmental experimentation that led to the formation of paired appendages in early vertebrates.
Stuart A. Newman's alternative model suggests that the origination of animal form motifs was predictable and sudden, with abrupt morphological transformations favored during early evolution. This perspective resolves puzzling aspects of animal evolution, including the rapid rise of complex body forms.
Researchers have identified a conserved class of genes responsible for the development of double flowers in plants like Thalictrum thalictroides. This discovery sheds light on the evolutionary history of flowering plants and their ability to coevolve with pollinators.
The Botanical Society of America (BSA) has launched an open-access journal, Applications in Plant Sciences (APPS), to promote the rapid dissemination of new tools and protocols. APPS will be part of BioOne's Open Access Collection, fostering communication within the botanical community to advance plant sciences.
Researchers found that modern birds are living dinosaurs with skulls similar to those of their juvenile ancestors. By analyzing fossil evidence and CT scans, they discovered that a change in developmental timing led to the evolution of birds, enabling them to retain physical characteristics of baby dinosaurs into adulthood.
New research in epigenetics explores the impact of environmental factors on gene expression, shedding light on the relationship between diet, lifestyle, and disease. The study suggests that environmentally induced epigenetic changes may not persist across generations, challenging the idea of an 'epigenetic designer baby'.
A study published in Nature Communications reveals that most vertebrates, including humans and fish, share a common electroreceptive system. The researchers found that the sensory organs develop in the same pattern from the same embryonic tissue, confirming their evolutionary heritage.
Researchers led by Robert Linhardt of Rensselaer Polytechnic Institute have sequenced the first complex carbohydrate biopolymer, bikunin. The discovery provides a fundamental new view of these vital biomolecules, which play roles in cell structure and development, disease pathology, and blood clotting.
A recent study tracking chimpanzee brain development found that both humans and chimps have immature forebrains at birth. The study's findings suggest that this developmental delay may provide an extended period of plasticity, enabling both species to develop complex social skills.
A comparative study of nematode species reveals that changes in a short protein domain can alter signaling networks involved in organ development. The modular structure of proteins allows for the conservation of important parts while enabling opportunities for short domains to change, facilitating evolutionary development.
Research by Jennifer Schmidt and Lennart Olsson reveals that the gene FOXN3 influences the development of cranial cartilages and muscles in frogs, contributing to their evolutionary success. The study found that tadpoles without intact FOXN3 genes develop more slowly and experience deformations and loss of functions.
A Springer journal article has won the prestigious George A. Miller Award for its innovative study on the impact of environmental factors on human behavior. The award recognizes outstanding recent articles on general psychology and highlights the importance of interdisciplinary research in understanding human behavior.
Researchers from the Max Planck Institute for Developmental Biology have discovered a control mechanism behind the development of Pristionchus' mouthparts. The organism's mouth dimorphism is triggered by environmental factors such as food scarcity and high population density, resulting in the development of strong teeth-like denticles.
The American Institute of Biological Sciences recognizes scientists, educators, and organizations for their leadership and contributions to science. The LTER Network receives the Distinguished Scientist Award, while Duke University Professor Kathleen K. Smith receives the Outstanding Service Award for her work at NESCent.
Researchers have discovered that Darwin's work on heterostylous flowers, a complex breeding system found in flowering plants, has significant economic implications. The study highlights the unique characteristics of heterostyly, which affects plant morphology, ecology, and evolution.
A team of researchers has developed a computer model reproducing population-level variation in complex structures like teeth and organs. The model shows that regulation of tooth development is already well known, with a simple basic formula behind the complex gene puzzle resulting in tooth formations.
Archaeologists at Tel Aviv University have uncovered clues about the development of communal meat-cutting habits in early humans. The study, published in the Proceedings of the National Academy of Sciences, reveals that our ancestors shared meat differently than later periods.
The SIB Swiss Institute of Bioinformatics awarded Lukas Burger for his innovative Bayesian network methodology for predicting protein sequences. Julien Roux won the award for his paper on vertebrate genome evolution, which challenged the traditional 'hourglass' model by revealing a strong effect of constraints in early development.
Martin Cohn, a UF developmental biologist, has been named an HHMI Early Career Scientist for his groundbreaking work on limb development and evolution. His research has led to new insights into the formation of human problems such as birth defects.
The AAAS plenary lecture explores the origins of evolutionary thought through the adventures of intrepid scientists Charles Darwin, Alfred Russel Wallace, and Henry W. Bates. The talk will be presented by Sean Carroll, a leading evolutionary biologist and author, who will share the stories of these pioneers who changed our view of life.
Researchers at Caltech have discovered intricate gene regulatory networks in various organisms, including fruit flies, nematodes, sea urchins, lampreys, and mice. These networks play a crucial role in directing developmental processes, with subtle balances of regulatory signals being essential for proper cell differentiation.