News tagged with mated females
Bonobos' unusual success story
Mate competition by males over females is common in many animal species. During mating season male testosterone levels rise, resulting in an increase in aggressive behavior and masculine features. Male bonobos, ...
Jan 23, 2012 |
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Paying for sex and 'playing dead' - the deceitful gift-giving spider
Male nursery web spiders (Pisaura mirabilis) prepare silk-wrapped gifts to give to potential mates. Most gifts contain insects, but some gifts are inedible plant seeds or empty exoskeletons left after the pr ...
Nov 13, 2011 |
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Drag race: Transvestite birds win competition for sex
In a species of hawk, males dress themselves up as females to gain a sneaky advantage in the mating game, according to an unusual study published Wednesday.
Nov 09, 2011 |
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What gets turned on when a female gets 'turned on'?
(PhysOrg.com) -- Hearing the courtship songs of males, not only gets females in the mood for mating, but can also prepare for potential infection, according to the latest research.
Oct 05, 2011 |
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Koalas' bellows boast about size
Koalas have a well-earned reputation for being dopey. Sleeping 19 hours out of every 24, and feeding for 3 of the remaining 5 hours, there doesn't seem to be much time for anything else in their lethargic lifestyle: that ...
Sep 29, 2011 |
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New research finds promiscuousness results in genetic 'trade-up,' more offspring
It's all about the grandkids! That's what a team led by an Indiana University biologist has learned about promiscuous female birds and why they mate outside their social pair.
Aug 31, 2011 |
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Females choose mates for their personalities, study shows
Adventurous females choose mates with similar personalities, regardless of the male's appearance and other assets, according to research led by the University of Exeter. This is the first study to show that ...
Aug 25, 2011 |
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Mosquitoes can't spot a spermless mate
A female mosquito cannot tell if the male that she has mated with is fertile or 'spermless' and unable to fertilise her eggs, according to a new study from scientists at Imperial College London.
Aug 08, 2011 |
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Female mate choice enhances offspring fitness in an annual herb
In many organisms females directly or indirectly select mates (or sperm) and potentially influence the fitness of their offspring. Mate choice and sexual selection in plants is more complex in some ways than ...
Jun 27, 2011 |
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The mechanics of speciation
Mate choice, competition, and the variety of resources available are the key factors influencing how a species evolves into separate species, according to a new mathematical model that integrates all three factors to reveal ...
Jun 24, 2011 |
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Copper butterfly folds wings to avoid unwanted male advances
(PhysOrg.com) -- In a move that females of any species would likely recognize, the small copper female butterfly has evolved a strategy of dissuading amorous males that is both effective and energy conserving; ...
Jun 02, 2011 |
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Mating rivalry among furred and feathered: Variety is spice of life
Birds do it. Bees do it. Fish, lobsters, frogs and lizards do it, too. But when it comes to securing a mate in the animal world, variety is literally the spice of life.
May 25, 2011 |
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When food is scarce, hungry female spiders alter mating preferences
(PhysOrg.com) -- Weather and environmental change can bring alterations – and scarcity – in food resources. In looking at how such changes might affect mating choices and subsequent reproduction, ...
Apr 01, 2011 |
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Opportunity leads to promiscuity among squirrels, study finds
University of Guelph researchers have finally figured out why female squirrels are so darn promiscuous. Turns out it has nothing to do with genes and everything to do with how many males are knocking at their ...
Dec 15, 2010 |
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Pride, prejudice and the 'Darcin effect'
The pheromone that attracts female mice to the odour of a particular male has been identified. Named 'darcin' by researchers writing in the open access journal BMC Biology (after Darcy, the attractive hero in Jane Austen ...
Jun 02, 2010 |
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