Articles tagged with Eggs
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A new study assesses DNA metabarcoding's performance in identifying fish eggs on the West Florida Shelf, highlighting its value for long-term monitoring of spawning sites and habitats. The technique can identify multiple species from a single sample, but may introduce biases by excluding rare species.
Daurian redstarts move their nests closer to human settlements when cuckoos are around to protect against brood parasitism. This strategy has been observed in a population of Daurian redstarts in northeastern China, illustrating how urbanization affects interspecific interactions.
A new study reveals naked mole-rats produce eggs throughout their lives, contrary to the dogma that female mammals have a finite ovarian reserve. The research found that these rodents have exceptionally large numbers of egg cells and lower cell death rates compared to mice.
The study found that nearly 17% of bird eggs fail to hatch, with endangered species experiencing even higher failure rates. Conservationists can support the recovery of threatened bird species by understanding how different practices affect hatching rates.
Researchers have identified a molecular finger that switches on genes in one-cell embryos, revealing a potential link to cancer. The discovery sheds light on the mechanisms regulating embryonic development and may lead to new insights into cancer detection.
A recent study published in PLOS ONE reveals the discovery of 92 fossilized egg nests belonging to titanosaurs, some of India's largest dinosaurs. The finds provide insights into the reproductive habits and nesting behaviors of these prehistoric creatures, shedding light on their lives shortly before they went extinct.
A Medical University of South Carolina research team has discovered that HDAC1 plays a crucial role in packing DNA around histones, which can help target cancer cells with inhibitors. The novel egg extract system allows researchers to study DNA packing in real-time, outside of a cell.
A new project aims to develop a method for producing antimicrobial peptides, which have shown promise in overcoming antibiotic resistance. The peptides' ability to delay microbial resistance development makes them an attractive alternative to conventional antibiotics.
Researchers at Cornell University found that injecting apple juice, pulp, and pomace into chicken eggs improves the animal's intestinal health and boosts microbial populations. This innovative approach could reduce the use of added dietary chemicals and improve nutrition in broiler feed.
A new egg species, Ramoprismatoolithus okurai, has been identified from Early Cretaceous fossil eggshell fragments found in Japan. The analysis of the eggshell fragments and impressions suggests an affinity with the troodontids, a group of small non-avian theropod dinosaurs.
Researchers found that neonicotinoid chemicals can impair the development of biological motion preference in chicks, similar to autism spectrum disorder in humans. The study suggests that transmission via nicotinic acetylcholine receptors is critical for this process.
A low-cost sensor disguised as a sea turtle egg can predict nest hatching time almost to the day. The TurtleSense system monitors nests remotely and detects synchronized developmental movement in real-time, enabling better decision-making for conservationists.
A Washington State University study showed that drone photography can effectively estimate the number of rocky hollows in the Wenatchee River where salmon create their eggs. The researchers found roughly double the number of redds using drones compared to ground-level observations, but with high variability. This technology has potenti...
Researchers have discovered that erect-crested penguins, an endangered species, lay a smaller first egg and reject it in favor of a larger second egg. This reproductive strategy allows the bird to better feed its chicks and increases the chances of survival for both eggs.
A team of researchers has identified three new turtle nesting sites in the central Red Sea, which could inform efforts to protect endangered sea turtles. The discovery was made using drone surveillance and sediment samples to identify optimal nesting conditions.
Research found a 74% higher risk of hypertensive disorders in pregnancy among women who received frozen embryo transfers compared to those with fresh embryo transfers or natural conception. The study suggests that IVF treatment factors may be involved, but more research is needed to identify the specific risks.
Researchers genetically mapped one of the oldest human parasites, the whipworm, using stool samples from Viking latrines. The study reveals a delicate relationship between humans and the parasite, which can make us healthier or ill, and provides new knowledge on its development and prehistoric dispersal.
Researchers used multiple 'omics' techniques to evaluate spindle transfer, a new IVF option that avoids mitochondrial disease inheritance. The study found no significant differences in DNA copy number or RNA expression profiles between spindle transfer and control embryos.
A randomized clinical trial found that vaccinating household chickens increased consumption of high-protein foods, leading to improved growth and reduced child stunting in rural Kenya. Children from vaccinated households showed a 24% increase in protein-rich food intake and significant gains in height and weight.
A recent study published in eLife found that eating up to one egg per day may help lower the risk of cardiovascular disease. The researchers identified 24 metabolites associated with self-reported levels of egg consumption and found that individuals who ate eggs regularly had higher levels of a protein called apolipoprotein A1.
Researchers found that male pheromones slowed down the aging of female roundworm eggs, resulting in healthier offspring. This finding could lead to pharmacological interventions improving human egg cell quality and delaying reproductive aging. The study used C. elegans as a model organism.
A recent study published in Endocrinology found that exposure to a scream sound may lead to diminished ovarian reserve and decreased fertility in female rats. The researchers discovered that the scream sound reduced estrogen and Anti-Mullerian hormone levels, as well as the number and quality of eggs, resulting in smaller litters.
Researchers at CRCHUM discover that cell division in mouse embryos occurs asymmetrically, with cytokinesis primarily pinched from one side. This finding challenges traditional textbook views of cell division and may have implications for embryo viability and human fertility.
A new study discovered a previously unknown mechanism in roundworms that protects their egg cells from division errors, which could lead to new strategies for combatting infertility in humans. The study found that removing certain proteins allowed another motor protein to kick in as a backup, restoring the spindle structure and allowin...
A study using century-old museum collections and modern data shows that about a third of bird species in Chicago are laying eggs nearly a month earlier than they did a hundred years ago. Climate change is believed to be the main culprit behind this shift, with rising temperatures affecting nesting habits.
The study found that a solid state of oskar RNP granules is crucial for localization and function in Drosophila embryos. Genetic engineering resulted in defects when granules were made liquid-like, highlighting the importance of biophysical properties.
The study used marinated eggs to demonstrate how diffusion works in a simple visual manner. The results showed that higher temperatures accelerated the diffusion process, with deeper penetration into the egg white over time. This experiment can be easily replicated at home or in a classroom setting.
Aging egg cells accumulate damage to genetic material, preventing maturation and fertilization. Researchers have identified a key process causing this damage and found that anti-viral drugs can reverse it.
Researchers identified a mechanism that helps explain how certain kinds of genetic disorders are transmitted from mother to child. The study showed that mutant mtDNA builds up in the final stages of egg formation and can impair mitochondrial function, leading to disease.
Scientists found a protective gene that counters a deleterious mutation causing atrial septal defects, allowing some people with the mutation to thrive. The discovery provides valuable clinical information for families affected by congenital heart disease.
A research team discovered that human eggs are missing the protein KIFC1, which acts as a molecular motor to stabilize spindle poles during cell division. This finding opens up new avenues for therapeutic approaches to reduce chromosome segregation errors in human eggs.
A rare dinosaur embryo discovered in southern China exhibits a bird-like posture before hatching, suggesting that oviraptorosaurs may have developed avian-like postures late in their incubation. This finding challenges current understanding of non-avian theropod behavior and opens up new avenues for research.
A study by UC Riverside scientists has identified a set of genes on a single chromosome associated with the production of male or female offspring in ant colonies. The discovery sheds light on the complex relationships between genetics and environmental factors in shaping the sex ratio of these societies.
Researchers have found that sharks acquire their microbiome through three methods: the mother passing on microbes to her offspring via egg case, social interactions with other sharks, and recruiting microbes from their environment. This study provides new insights into the development of animal microbiomes and their importance in under...
A new study finds that children who didn't have eggs introduced by 12 months were more likely to develop an egg allergy at 6 years. The research suggests early and frequent egg consumption during infancy may be protective against the development of egg allergy.
A Brazilian study expands amphibians' known reproductive modes to 74, creating a new classification. The research analyzed 2,171 species of amphibians, including anurans with 71 reproductive modes, some laying eggs in aquatic environments while others develop directly.
A study published in Scientific Reports found fossilized remains of sauropodomorphs, including eggs and skeletal remains, that suggest the earliest evidence of herd living in dinosaurs. The fossils, dated to approximately 193 million years old, show age-specific clusters of individuals, indicating possible herding behavior.
Researchers found that female yellow warblers who heard referential 'seet' calls the previous day would sit on their nest for a longer period and be less active, suggesting they recalled past events and engaged in mental time travel to boost vigilance. This behavior may indicate a heightened state of alert or cognitive processing.
Scientists at the University of Kent have developed a mathematical formula that describes the shape of any bird's egg in nature. The formula is based on four parameters and can be applied across multiple disciplines, including food research, mechanical engineering, and agriculture.
A study published in Developmental Cell reveals that lagging chromosomes contribute to an uneven chromosomal distribution, leading to aneuploidy and infertility. Researchers propose artificially slowing down cell division to limit aneuploidy, offering a potential solution for improving egg quality in older patients.
Scientists have identified nearly 300 gene variations that influence reproductive lifespan in women. Manipulating key genes in mice extended their reproductive lifespan, providing insights into the biology of reproductive ageing.
A new testing technique using fruit flies could identify potential non-hormonal birth control drugs with fewer side effects for women. The method uses compounds that stop ovulation in fruit flies to test potential human birth control drugs.
Researchers developed novel imaging approach to visualize eggs and embryos in live animals, revealing complex dynamics of egg and embryo transport. The findings have important implications for studies of fertilization, embryogenesis, and in vitro fertilization.
Researchers found that vaccines produced in chicken eggs induce an antibody response against a glycan called N-acetyllactosamine (LacNAc), which is not typically targeted by the immune system. This unexpected finding may impact the effectiveness of flu vaccines grown in eggs.
A retrospective observational study in the UK suggests that IVF clinics are retrieving an excessive number of oocytes, with some women having over 50 eggs collected during a single procedure. The high number of oocytes retrieved may lead to ovarian hyperstimulation syndrome and emotional distress for patients.
A new study found that a double stimulation approach, known as DuoStim, is as efficient as conventional two cycles of ovarian stimulation and reduces the time to pregnancy in predicted poor responders. This strategy recruits multiple follicles on any day of the cycle, benefiting patients with low egg collection and high treatment failu...
A new study by the University of Exeter and Queensland has found that herring gull eggs contain up to six types of phthalate, potentially causing oxidative stress in chicks. The research suggests that mothers pass on phthalates and products of lipid damage through their eggs.
Researchers have recorded development anomalies in the Menetries' tiger moth for the first time, providing new information on this rare Palaearctic species. The study found that up to 75% of larvae died before pupation, and some metamorphosis anomalies resulted in adults with wing inflation issues.
A new microfluidics system automates the loading of cryoprotectants in IVF embryos before freezing them, reducing molecular damage caused by cryopreservation. This approach enables faster and more efficient embryo cryopreservation with lower concentrations of toxic chemicals.
Researchers have discovered the mechanism of follicle development by MIS, a key reproductive hormone that suppresses follicle growth and prevents ovulation. This understanding may lead to novel approaches to contraception, preserving eggs lost to aging or chemotherapy, and improving fertility treatment success.
A new study found that spotted salamanders' egg mass coloration is influenced by two opposing evolutionary forces: genetic drift and balancing selection. In small populations, genetic drift drives changes in morph frequencies, while balancing selection helps preserve multiple traits.
Researchers at Shinshu University have successfully edited the silk moth's temperature sensor to induce dormancy based on day length, similar to its ancestral species. This breakthrough sheds light on the molecular mechanisms behind environmental adaptation in insects and has significant implications for the sericulture industry.
A team of scientists simulated the task of piercing an egg to understand how host birds defend against brood parasites. They found that nests and tool shape significantly affect the mechanics and energy requirements of avian eggshell puncture.
A new species of parasitic cuckoo wasp was discovered in Norway based on its unique use of pheromones. The researchers were able to distinguish between two closely related species by analyzing the chemical language used by the wasps.
Researchers discover fruit fly egg takes an active role in its own growth and supports neighboring cells, challenging the long-held view of passive egg development. The findings highlight parallels to mammalian development and suggest bidirectional communication between oocyte and nurse cells.
A rare oviraptorid dinosaur fossil was found in southern China, showing the animal sitting on a nest of at least 24 eggs with well-developed embryos. The fossil provides significant insights into the reproductive biology of non-avian theropod dinosaurs.
Researchers have identified a key gene in zebrafish cardiac rhythm, which could lead to better understanding and treatment of cardiac arrhythmia in humans. The gene, Tmem161b, is found to play a central function in controlling heart rhythm, with mutations potentially causing fatal arrhythmias.
A study by a USF professor found that individual females lay numerous clutches of eggs miles apart from each other. This strategy helps reduce the risk of complete reproductive failure and increases the survival rate of hatchlings.
Researchers have discovered fossils of tiny tyrannosaur embryos that provide insight into the early stages of these colossal animals. The discovery sheds light on the size and appearance of baby tyrannosaurs, which could grow up to 40 feet in length and weigh eight tonnes.
Researchers developed a novel decontamination method using pulsed ultraviolet light to inactivate microbial strains on eggshells, achieving significant reductions. The technology showed no negative effects on hatching eggs or chick growth, improving food safety and potential financial constraints.