A Gel Injected Into the Scrotum Could Be the Next Male Contraceptive
Biotech company Contraline has safely implanted a sperm-blocking hydrogel in 23 men. It’s designed to be a fully reversible vasectomy......»»
Bonobos are more aggressive than previously thought, study shows
Chimpanzees and bonobos are often thought to reflect two different sides of human nature—the conflict-ready chimpanzee versus the peaceful bonobo—but a new study published in Current Biology shows that, within their own communities, male bonobos.....»»
Do opponents" race, gender, and party impact US congressional fundraising?
Donations for a political candidate can be motivated by support for that candidate or by opposition to the candidate's opponent. New research published in Social Science Quarterly found that female Democrats and non-white male Democrats in the United.....»»
Male and female crab spiders found to "cooperate" to mimic a flower to fool prey and predators
A pair of environmental scientists at Yunnan University, in China, has found an instance of a pair of spiders, one male, the other female, working together to create the image of a flower, thereby fooling both prey and predators......»»
Baby gorilla cuddled by mother at London Zoo remains nameless
The newest endangered baby gorilla at the London Zoo is more than six weeks old but doesn't yet have a name. Zookeepers aren't even sure if it's a male or female because they haven't been able to get close enough to examine it......»»
Citizen scientists contribute vital information about 35 seahorse species
Thanks to diligent observers, seahorses, those enigmatic and charismatic fish, are not only being discovered in new habitats and expanded geographic ranges, they are also being found at new ocean depths. While their capacity for male pregnancy has lo.....»»
Decoding the shared genetic toolkit for male sex determination
Researchers from the Max Planck Institute for Biology Tübingen have broken new ground by demonstrating that an HMG-box gene in brown algae is crucial for determining male sex. This breakthrough significantly expands our understanding of sex-determin.....»»
Seven billion newly hatched chicks are killed every year—but a ban is not the solution, says study
With Easter just around the corner, we are surrounded by a ubiquity of eggs and adorable yellow chicks that symbolize life and resurrection. In stark contrast is the fact that around seven billion male layer chicks, are shredded or gassed alive by th.....»»
Most male mammals are not bigger than females: New analysis of more than 400 species
New research is cutting male mammals down to size......»»
Tsetse fly fertility damaged after just one heat wave, study finds
The fertility of both female and male tsetse flies is affected by a single burst of hot weather, researchers at the University of Bristol and Stellenbosch University in South Africa have found......»»
"GPS nanoparticle" platform precisely delivers therapeutic payload to cancer cells
A newly developed "GPS nanoparticle" injected intravenously can home in on cancer cells to deliver a genetic punch to the protein implicated in tumor growth and spread, according to researchers from Penn State. They tested their approach in human cel.....»»
Male roundworms are picky when choosing a mate, new research finds
A piece of rotting fruit is likely covered in hundreds if not thousands of microscopic roundworms, including C. elegans—a popular experimental model system for studying neurogenetics. With a lifespan of only a few weeks, C. elegans must reproduce q.....»»
Researchers reveal how a virus hijacks insect sperm: May help control disease vectors and pests
A widespread bacteria called Wolbachia and a virus that it carries can cause sterility in male insects by hijacking their sperm, preventing them from fertilizing eggs of females that do not have the same combination of bacteria and virus......»»
Are women CEOs more risk-averse than men? Not necessarily, study shows
According to a commonly held assumption, women CEOs are more risk-averse than their male counterparts. Some studies have even demonstrated that women in top leadership roles are less likely than men to engage in acquisitions......»»
Study finds Black boys are less likely to be identified for special education when matched with Black teachers
Black male elementary school students matched to Black teachers are less likely to be identified for special education services, according to new research. The relationship is strongest for economically disadvantaged students......»»
Gender can shape how teaching assistants are evaluated, study finds
Male teaching assistants are more likely to receive higher ratings than their female counterparts, and both genders are perceived as more valuable when exhibiting traits historically associated with their respective roles in society, a Cornell study.....»»
Male glass frogs that care for offspring found to have smaller testes
A small international team of animal behavior researchers has found that species of glass frogs whose males help care for offspring tend to have smaller testes than species whose males do not help care for offspring. In their study, published in the.....»»
Men become less fertile with age, but the same isn"t true for all animals: Study
We take it for granted that humans find it more difficult to conceive as they grow older. But our recent study, which analyzed data from 157 animal species, found that male reproductive aging seems to be a lot less common in other male animals......»»
Charlotte, a stingray with no male companion, is pregnant in her mountain aquarium
Charlotte, a rust-colored stingray the size of a serving platter, has spent much of her life gliding around the confines of a storefront aquarium in North Carolina's Appalachian Mountains......»»
Why do flies fall in love? Researchers tease out the signals behind fruit fly courtship songs
Like a Valentine's Day dinner or a box of chocolates, male fruit flies have their own rituals for wooing a potential mate......»»
"I"m watching you" behavior produces racial disparities in school discipline, study suggests
During the 2020–21 school year, the number of Black male students involved in disciplinary outcomes at school was disproportionately high compared to their enrollment numbers in kindergarten through grade 12, according to a report the U.S. Departme.....»»