Fathering offspring is more than just a race to the egg
The chance of a male fathering offspring may not be a simple race to the egg, but is influenced by the length of the male's sperm, say scientists from the University of Sheffield.
Online students give instructors higher marks if they think instructors are men
A new study shows that college students in online courses give better evaluations to instructors they think are men - even when the instructor is actually a woman.
Being lower in pecking order improves female tit birds' memory
When it comes to remembering where a tasty titbit was left, female great tit birds are miles ahead of their male counterparts. This ability might have evolved because the females come second when there's ...
I like bright butts – how male mantids locate females
Praying mantids are masters of camouflage, blending in with the background vegetation, at least to human eyes. Camouflage can be an effective protection from predators and an important concealment from approaching ...
Scientists find potential biological control for avocado-ravaging disease
University of Florida scientists believe they've found what could be the first biological control strategy against laurel wilt, a disease that threatens the state's $54 million-a-year avocado industry.
More women on corporate boards doesn't mean less risk
There is a popular notion abroad that women are not risk takers and their mere presence on a bank board will reduce risky strategies and behaviours. ...
Female color perception affects evolution of male plumage in birds
The expression of a gene involved in female birds' color vision is linked to the evolution of colorful plumage in males, reports a new study from the University of Chicago. The findings, published Nov. 26 ...
The female of the species is harder to please than the male
Female bats are fussier than males when it comes choosing where to eat in urban areas, according to new research from the University of Stirling.
Female sea urchins hedge their bets in the mating game
Sleeping around pays off for females, according to an international team of evolutionary biologists.
Cuttlefish males prefer mysterious mate, on-heat females available
A new study has investigated the mating preferences of the giant Australian cuttlefish, finding that females were most receptive if they had not recently mated, while male cuttlefish demonstrated a preference ...
Females protect offspring from infanticide by forcing males to compete through sperm
Previous research has shown that infanticide by males is widespread in many mammal species, but most commonly occurs in those species where females live in social groups dominated by one or a few males.
Intimidating chimpanzee males are more likely to become fathers
In a long-term study of interactions between chimpanzees in the famous Gombe National Park in Tanzania, researchers have found that males who consistently bully females tend to father more babies with their ...
Study suggests how mosquitoes evolved an attraction to human scent
The female mosquitoes that spread dengue and yellow fever didn't always rely on human blood to nourish their eggs. Their ancestors fed on furrier animals in the forest. But then, thousands of years ago, some ...
Mosquito-feeding study may help stem dangerous viruses
Mosquitoes bite male birds nearly twice as often as they bite females, a finding that may help scientists understand how to stem some viruses from spreading to humans, new University of Florida research shows.