This is the story of three bird species and how they interact. The brown-headed cowbird lays its eggs in other birds' nests and lets them raise its young -- often at the expense of the host's nestlings. To combat this threat, yellow warblers have developed a special 'seet' call that means, 'Look out! Cowbird!' In a new study, researchers report that red-winged blackbirds respond to the seet call as if they know what it means.
Trouble for alcoholic fathers, hope for alcoholic mothers. Scientists at the University of California, Riverside, have explored the relationship between parental alcohol consumption -- before conception in the case of fathers and during pregnancy in the case of mothers -- and offspring development.
The factors associated with men ending treatment for erectile dysfunction have been reviewed in a study published in IJIR: Your Sexual Medicine Journal. The most influential factors reported were treatment ineffectiveness, side effects, the quality of one's intimate relationship and cost of treatment. The review also highlights the importance of men's beliefs with regards to erectile dysfunction and its treatment and suggests that these beliefs are potentially modifiable.
Men are more prone to competitive risk taking and violent behavior, so what happens when the number of men is greater than the number of women in a population? According to research by Florida State University Professor of Psychology Jon Maner, the answers might not be what you expect.
Researchers have developed a test to measure the expressive language skills of people with Fragile X syndrome, a genetic disorder that may result in intellectual disability, cognitive impairment and symptoms of autism spectrum disorder. Expressive language refers to the use of words to convey meaning to others. The work was funded by the Eunice Kennedy Shriver National Institute of Child Health and Human Development, part of the National Institutes of Health.
Prolonged fear and anxiety brought on by major stressors, like the coronavirus pandemic, can not only take a toll on a person's mental health, but may also have a lasting impact on a man's sperm composition that could affect his future offspring. That is the finding of a provocative new study published in the journal Nature Communications by researchers at the University of Maryland School of Medicine.
Researchers from Osaka University found that high blood pressure and obesity are the strongest factors reducing lifespan based on genetic and clinical information of 700,000 patients in the UK, Finland and Japan. These findings could be exploited to develop novel medical treatments to improve population health.
A study published in PLOS ONE showed that an internet-based version of Harvard's Mind/Body Program for Fertility achieved results similar to the in-person program, more than doubling pregnancy rates for women experiencing infertility, compared with a control group. The findings are significant because women in infertility treatment tend not to access in-person counseling and often give up on their dream of having a child.
This observational study looked at how common nonmedical prescription opioid use was among transgender girls and young women and risk factors associated with it.
Data collected from 155 adult transgender women and 55 transgender men were used to identify the earliest age at which gender dysphoria was experienced in this patient population seeking genital gender-affirming surgery at a California hospital.