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......»»
New candidate genes for human male infertility found by analyzing gorillas" unusual reproductive system
Despite their formidable bodies, male gorillas are lacking in one particular area of their anatomy......»»
Expelling students for bad behavior seems like the obvious solution, but is it really a good idea?
Two male students have been expelled from a Melbourne private school for their involvement in a list ranking female students......»»
Male or female? Scientists discover the genetic mechanism that determines sex development in butterflies
Scientists of the Biology Centre, Czech Academy of Sciences, in collaboration with University of Liverpool have found the genetic mechanism that determines whether individuals of the butterfly species Bicyclus anynana become male or female......»»
Why do male chicks play more than females? Study finds answers in distant ancestor
Play is widespread, but far from ubiquitous, across the animal kingdom. Especially common in mammals, play is also known to occur in taxa as diverse as birds, fish, octopuses, and even insects. But what is its function, given that natural selection n.....»»
Alpacas found to be the only mammal to directly inseminate the uterus
A pair of biologists from Mount Holyoke College, working with a colleague from North American Camelid Studies Program, the Nunoa Project, has found that the male alpaca thrusts his penis all the way into the uterus of the female during mating, making.....»»
Startup financing gender gaps greater in societies where women are more empowered: Study
Commercial bankers provide capital to fund the operations and growth of businesses. However, as these lenders evaluate entrepreneurs who apply for loans, gender bias leads to women being denied more often than their male counterparts......»»
Wild turkey numbers are falling in some parts of the US—the main reason may be habitat loss
Birdsong is a welcome sign of spring, but robins and cardinals aren't the only birds showing off for breeding season. In many parts of North America, you're likely to encounter male wild turkeys, puffed up like beach balls and with their tails fanned.....»»
Exploring why young women in Australia are reluctant to enter politics
Despite growing momentum to increase female representation in Australia's national parliament, it continues to be a male dominated domain. New research from Monash University explores why young women still feel reluctant to become a member of the nat.....»»
Researchers find babbling by zebra finch chicks is important step to memorizing songs
When babies learn to talk or birds learn to sing, the same principle applies: listen and then imitate. This is how the first babble becomes the first word or vocalization. Male zebra finch chicks initially memorize the song of an adult bird. Later, t.....»»
Older male blue tits out-compete young males when it comes to extra-marital breeding
Young male blue tits are less successful in fathering offspring outside their breeding pair, not because of a lack of experience, but because they are outcompeted by older males, Bart Kempenaers and colleagues from the Max Planck Institute for Biolog.....»»
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.....»»