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uOttawa researchers discover new sex hormone
When University of Ottawa biologists Kim Mitchell and Vance Trudeau began studying the effects of gene mutations in zebrafish, they uncovered new functions that regulate how males and females interact while mating. (2020-05-25)
Past is prologue: Genetic 'memory' of ancestral environments helps organisms readapt
Organisms carry long-term 'memories' of their ancestral homelands that help them adapt to environmental change, according to a new study that involved raising chickens on the Tibetan Plateau and an adjacent lowland site. (2020-05-22)
Preserving fertility in female cancer patients and ageing populations
A Monash University study has uncovered the role DNA repair plays in preserving egg quality, offering hope for women whose eggs may be damaged through treatments such as radiation and chemotherapy. (2020-05-21)
Faster breeding sea urchins: A comeback animal model for developmental biology
University of Tsukuba researchers identified a species of sea urchin with a relatively short breeding cycle of six months. (2020-05-19)
Mother roundworms have ultra-protective instincts
University of Iowa biologists have learned animals can alert future offspring of dangers they will encounter when born. (2020-05-18)
Oyster farming and shorebirds likely can coexist
Oyster farming as currently practiced along the Delaware Bayshore does not significantly impact four shorebirds, including the federally threatened red knot, which migrates thousands of miles from Chile annually, according to a Rutgers-led study. (2020-05-14)
Johns Hopkins: What we can't see can help us find things
Anyone who's ever tried to find something in a hurry knows how helpful it is to think about the lost item's color, size and shape. (2020-05-12)
New test identifies lobster hybrids
Scientists have developed a test that can identify hybrids resulting from crossbreeding between European and American lobsters. (2020-05-11)
Fishing can disrupt mating systems
In many fish species body size plays an important role in sexual selection. (2020-05-08)
Foraging Drosophila flies are open for new microbial partners
Scientists at the Max Planck Institute for Chemical Ecology found that vinegar flies do not necessarily prefer yeasts from their natural environments, but were also attracted by yeasts found in a foreign habitat. (2020-05-04)
A 'corset' for the enzyme structure
The structure of enzymes determines how they control vital processes such as digestion or immune response. (2020-04-24)
Does primary ovarian insufficiency affect your risks for obesity and diabetes?
Are overweight women less fertile? Does primary ovarian insufficiency increase risks for obesity and diabetes? (2020-04-15)
Why do so many pregnancies and in vitro fertilization attempts fail?
Scientists have created a mathematical model that can help explain why so many pregnancies and in vitro fertilization attempts fail. (2020-04-13)
Fungus application thwarts major soybean pest, study finds
The soybean cyst nematode sucks the nutrients out of soybean roots, causing more than $1 billion in soybean yield losses in the U.S. each year. (2020-04-09)
A bad egg does good for its mother
There is plenty of scientific evidence that the health of a mother can impact the health of her child. (2020-04-08)
Study suggests marijuana may impair female fertility
Female eggs exposed to THC, the psychoactive ingredient in marijuana, have an impaired ability to produce viable embryos, and are significantly less likely to result in a viable pregnancy, according to an animal study accepted for presentation at ENDO 2020, the Endocrine Society's annual meeting. (2020-04-02)
Consumption of 3-6 eggs/week lowers the risk of cardiovascular disease and death
Eggs are nutrient-dense while also loaded with abundant cholesterol, thus making the public hesitant about consumption. (2020-04-01)
Tiny fly from Los Angeles has a taste for crushed invasive snails
As part of their project BioSCAN the scientists at the Natural History Museum of Los Angeles County (USA) have already discovered plenty of minute insects that are new to science, but they are still only guessing what the lifestyles of these species are. (2020-04-01)
When warblers warn of cowbirds, blackbirds get the message
This is the story of three bird species and how they interact. (2020-03-31)
A critical enzyme for sperm formation could be a target for treating male infertility
Researchers led by Jeremy Wang of the University of Pennsylvania School of Veterinary Medicine have identified an enzyme essential for the process of male meiosis, the type of cell division that produces sperm. (2020-03-25)
The growth of an organism rides on a pattern of waves
Study shows ripples across a newly fertilized egg are similar to other systems, from ocean and atmospheric circulations to quantum fluids. (2020-03-23)
Maggot analysis goes molecular for forensic cases
Maggots on a dead body or wound can help pinpoint when a person or animal died, or when maltreatment began in elder, child care or animal neglect cases. (2020-03-18)
Two hormones drive anemonefish fathering, aggression
Two brain-signaling molecules control how anemonefish dads care for their young and respond to nest intruders, researchers report in a new study. (2020-03-16)
Jellyfish help understand the timing of egg production
In animals, releasing eggs in a timely manner is vital to maximize the chances of successful fertilization. (2020-03-03)
The tentacle 'bot
Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and Beihang University have developed an octopus-inspired soft robotic arm that can grip, move, and manipulate a wide range of objects. (2020-02-27)
Study of 418,000 Europeans finds different foods linked to different types of stroke
Different types of food are linked to risks of different types of stroke, according to the largest study to investigate this, published in the European Heart Journal. (2020-02-23)
NUI Galway highlights reproductive flexibility in hydractinia, a Galway bay jellyfish
A new study, led by Dr Tim DuBuc and Professor Uri Frank from the Centre for Chromosome Biology at NUI Galway, has found that Hydractinia, a North Atlantic jellyfish that also lives in Galway Bay, reproduces in a similar way to humans but does so far more flexibly. (2020-02-21)
First baby born to cancer patient from eggs matured in the lab and frozen
Fertility doctors in France have announced the birth of the first baby to be born to a cancer patient from an immature egg that was matured in the laboratory, frozen, then thawed and fertilized five years later. (2020-02-18)
Road salt harmful to native amphibians, new research shows
The combined effects of chemical contamination by road salt and invasive species can harm native amphibians, according to researchers at Binghamton University, State University of New York. (2020-02-17)
The paradox of dormancy: Why sleep when you can eat?
Why do predators sometimes lay dormant eggs -- eggs which are hardy, but take a long time to hatch, and are expensive to produce? (2020-02-15)
How did dinosaur parents know when their kids had a fever?
How Did Dinosaur Parents Know When Their Kids Had a Fever? (2020-02-14)
Babies mimic songs, study finds
Researchers -- and parents -- have long known that babies learn to speak by mimicking the words they hear. (2020-02-13)
How a tiny and strange marine animal produces unlimited eggs and sperm over its lifetime
During human embryonic development, a small pool of germ cells that will eventually become gametes is set aside, and all sperm or eggs that humans produce during their lives are the descendants of those original few germ cells. (2020-02-13)
Research reverses the reproductive clock in mice
Researchers have lifted fertility rates in older female mice with small doses of a metabolic compound that reverses the ageing process in eggs, offering hope for some women struggling to conceive. (2020-02-12)
Five things to know about egg freezing
Egg freezing for age-related fertility is becoming more common, and a short article in CMAJ (Canadian Medical Association Journal) provides quick reference points on the topic for primary care providers. (2020-02-10)
Discovery of genes involved in infertility
A research group from Kumamoto University, Japan has discovered a gene, 'Meiosin', that acts as the switch to turn on meiosis. (2020-02-06)
UCLA research could be step toward lab-grown eggs and sperm to treat infertility
A new study on how and when the precursors to eggs and sperm are formed during development could help pave the way for generating egg and sperm cells in the lab to treat infertility. (2020-02-06)
Feeding bluebirds helps fend off parasites
If you feed the birds in your backyard, you may be doing more than just making sure they have a source of food: you may be helping baby birds give parasites the boot. (2020-02-04)
Simple solution to ensure raw egg safety
Salmonella is a key cause of foodborne gastroenteritis around the world, with most outbreaks linked to eggs, poultry meat, pork, beef, dairy, nuts and fresh produce. (2020-02-02)
An egg a day not tied to risk of heart disease
The controversy about whether eggs are good or bad for your heart health may be solved, and about one a day is fine. (2020-01-27)
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