Cricket fertility found to improve with age
UWA scientists researching the seminal fluid of field crickets (teleogryllus oceanicus) are a step closer to knowing why the insect's competitive fertilisation success increases with age.
Scientists wipe out malaria-carrying mosquitoes in the lab by creating male-only offspring
Scientists have modified mosquitoes to produce sperm that will only create males, pioneering a fresh approach to eradicating malaria.
From monogamous termites to male-eating spiders, an ecologist explains
The Conversation organised a public question-and-answer session on Reddit in which James Gilbert, postdoctoral researcher at the University of Sussex, explained weird and stunning insect reproductive strategies. ...
New method distinguishes yellow perch females from males
A plentiful supply of yellow perch was once available in the U.S. Great Lakes region, but that changed in the 1990s. Populations of this Midwest fish-fry favorite dropped dramatically due to the invasion ...
Temperature influences gender of offspring: Heat favours production of male progeny
Whether an insect will have a male or female offspring depends on the weather, according to a study led by Joffrey Moiroux and Jacques Brodeur of the University of Montreal's Department of Biological Sciences. The research ...
Shorter lives for male fruit flies forced to compete
A University of Liverpool study of fruit flies has revealed that males forced to compete with other males become less attractive to females and die young.
Ruff courtship a matter of genes
(Phys.org) —A Simon Fraser University biologist who has spent three decades studying the ruff, a migratory shorebird, has found that its distinct approaches to courtship and mating are governed by genes ...
Researchers find chemicals and neurons responsible for turning parental care on and off in mice
'Stingy' males looking for sex unpopular with females, says insect study
(Phys.org) —When it comes to the insect world, males who expect sex - without first bothering to 'wine and dine' their partner - are likely to get a good kicking from angry females, says a new University ...
Outdated assumptions make evolutionary researchers ignore female genitalia
(Phys.org) —Animal genitalia are structurally diverse organs that can evolve rapidly under powerful selective forces exerted by the peculiarities of sexual reproduction. An overarching review of the existing ...
Humans have a nose for gender
The human body produces chemical cues that communicate gender to members of the opposite sex, according to researchers who report their findings in the Cell Press journal Current Biology on May 1. Whiffs of the ...
To mark territory or not to mark territory: Breaking the pheromone code
A team led by scientists at The Scripps Research Institute (TSRI) has deciphered the surprisingly versatile code by which chemical cues help trigger some of the most basic behaviors in mice.
Picky male black widow spiders prefer well-fed virgins
New University of Toronto Scarborough research shows that male black widow spiders prefer their female mates to be well-fed virgins – a rare example of mate preference by male spiders.
Personality determines whether tarantulas copulate with males or cannibalize them
Sexual cannibalism in spiders – the attack and consumption of males by females before or after copulation – is very widespread. A new investigation analyses the reason behind such extreme behaviour, at ...