Tag: "fathers" at biology news

Theory on evolution of essential genes is overturned by new finding

A gene passed on by fathers that plays a vital role in helping fertilised eggs to develop into adults has helped scientists overturn the idea that essential genes have always been part of the genetic makeup of a species. The research, published in the journal Current Biology ...

Parents' attitudes to sperm donation still some concerns about being open

... Some feared the child might reject them with some fathers being concerned they would be rejected in favour of the biological father. The researchers found that families with two or more siblings were less inclined to be open, possibly because a decision had been made when the first child was born and the cl...

Childhood deficits in the cerebellum may be linked to adult alcoholism

..., two thirds of the original subjects were sons of fathers with a history of alcoholism; one third consisted of sons of fathers with no history of alcoholism. Of the original 330 babies, 241 completed the 30-year follow-up asse...

How the environment could be damaging men's reproductive health

...as the father's weight; babies born to underweight fathers (body mass index less than 20kg/m2) were six times more likely to have undescended testes. However, Dr Jorgensen said: "This finding should be treated with caution because the number of cases was rather low and only larger studies will be able to sho...

Damage to sperm DNA affects older men's chances of fathering children

... said. "In the United States, the birth rate for fathers older than 35 years increased by almost 20% between 1980 and 1995. ESHRE has reported that there had been an increase in the number of men between 50 and 65 years of age attending andrology centres over the same time period, and our study confirms t...

Divergent mating systems and parental conflict as a barrier to hybridization in flowering plants

...e best suited father from a larger pool, while all fathers have an interest in being picked. After fertilization, fathers have an interest in maximizing maternal investment in their progeny, while mothers will have an inte...

Humans are governed by emotionsliterally

...botage our long-term interests. America's founding fathers understood that passion could trump principle and therefore vested Congress, a deliberative body in which power is dispersed among dozens of members, with the power to make war, rather than with the president. But that constitutional safeguard began ...

Swedish researchers warn university students face infertility

...days were more equally divided between mothers and fathers it would strengthen women's status in the labour market. In Sweden, a limit to the right to transfer benefit days is currently being discussed as a way to increase fathers' use of these days." She said the present findings about the lack of awareness...

Rutgers researchers scientifically link dancing ability to mate quality

... evaluators rated symmetric men. "In species where fathers invest less than mothers in their offspring, females tend to be more selective in mate choice and males therefore invest more in courtship display," Brown said. "Our results with human subjects correlate with that expectation. More symmetrical men pu...

Like their pregnant mates, primate dads-to-be pack on pounds

...logy Letters. The knowledge that expecting primate fathers also experience biological changes can help scientists better understand what governs human fathering behavior, Ziegler adds. "We're interested in what motivates dads to be good parents because there are so many men who just aren't good fathers. This...

Scientists discuss evolutionary roots of social behavior

...portant role in ensuring that marmoset and tamarin fathers remain committed to their mates and infants, Snowdon says. Human mothers, like marmoset and tamarin females, also rely on the help of their partners to rear children, Snowdon notes. So insights into marmoset and tamarin affiliation behaviors may help...

Active inbreeding avoidance in wild capuchin monkeys

...population of wild capuchin monkeys has shown that fathers almost never mate with their daughters, even though alpha males sire the majority of offspring produced by females unrelated to them. The findings suggest that psychological or other sophisticated behavioral barriers have evolved in this primate spec...

Does father know best?

...me studies have suggested that up to 10 percent of fathers are not the biological parents of their alleged child, but little is known about how this differs across cultures and to what extent men's paternity assessments reflect actual biological paternity. "The issue of paternity--whether a man really is t...

Global team of scientists describes new genus of African monkey: First in 83 years

...fspring, Y-chromosome DNA that is passed only from fathers to sons, and a chromosomal gene that is passed to all offspring to identify the placement of Kipunji on the family tree of primates. Given the results of the molecular and anatomical analyses, the team placed Kipunji in its own genus Rungwecebus, nam...

Study shows that genetic quality of sperm deteriorates as men age

...n fathering children, and a 20 percent decrease in fathers under 30. Studies have also shown that it takes longer for older men to conceive, even when the age of the mother is considered. Other authors of the study are Francesca Pearson from LLNL, Suzanne Young from UC Berkeley's School of Public Health, Ir...

Newborn screening can cause unnecessary parental stress

...stment for socioeconomic factors, both mothers and fathers in the false-positive group had higher scores on the standardized Parenting Stress Index (PSI); 11 percent of mothers (versus no mothers in the comparison group) scored in the clinical range, in which treatment might be prescribed. Waisbren and Guria...

New procedure safer for detecting fetal anemia

...ertain types of red blood cell antigens from their fathers that are incompatible with those in their mother. While pregnant, the mother's immune system can create antibodies that attack these conflicting red blood cells in the fetus, which may lead to complications including miscarriage, fetal anemia, fetal...

Miscarriage significantly associated with increasing paternal age

...information on many characteristics of mothers and fathers that might contribute to spontaneous abortion. The researchers analyzed data from the ante-natal or post-partum interviews of 13,865 women. This data was recorded in the Jerusalem Perinatal Study, a population-based cohort derived from 92,408 birth...

Scent of father checks daughter's maturity

Chemical cues from fathers may be delaying the onset of sexual maturity in da...ccording to researchers at Penn State. "Biological fathers send out inhibitory chemical signals to their daughters," said Robert Matchock, assistant professor ...

16 outstanding researchers receive Singapore's highest honor in science and technology

...lopment Board. Dr Brenner is one of the founding fathers of modern biology, winner of two Albert Lasker Awards and the 2002 Nobel Prize in Physiology or Medicine. This scientific giant is a constant source of ideas and insight. Many of the initiatives and progress in Singapore's biomedical sciences secto...

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(Date:10/17/2014)... release is available in German . ... of sperms every day in order to reproduce? And why ... the topic of the latest issue of the research journal ... The evolutionary biologist Steven Ramm from Bielefeld University Bielefeld has ... is not unusual for a female to copulate with several ...
(Date:10/16/2014)... have a new synthesis of recent research findings to ... in the two states. , The Ecology and ... Washington: A Synthesis of the Relevant Biophysical Science and ... published by the U.S. Forest Service,s Pacific Northwest Research ... managers for a synthesis of the large body of ...
(Date:10/16/2014)... October 16, 2014 NXT-ID, Inc. (NASDAQ: ... a biometric authentication company focused on the growing mobile ... technologies including Wocket™, the Smart Wallet, at the 13 ... is a leading global conference on the intersection of ... Mark Anderson , founder and publisher of the ...
Breaking Biology News(10 mins):Sperm wars 2New report synthesizes best available science on management of moist mixed-conifer forests 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3
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