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Ok first let me get the extremely sloppy wording in this story on EurekAlert out of the way []:"No matter the species males apparently ramp up flashier features and more melodious warbles in an eternal competition to win the best mates a concept known as sexual selection.""Researchers believe this relatively uncomplicated genetic pathway helps males respond to the pressures of sexual selection ultimately enabling them to win females and produce greater numbers of offspring.""It turns out that the extra X in females may make answering the call of selection more complicated."The story suggests that traits like elaborate ornamentation evolve more readily in males than in females because males have "simpler" genetic systems not having that second X chromosome and all. This is based on a study of Drosophila melanogaster which the story notes has an XY (male) / XX (female) chromosomal sex determination system similar in broad outline to the situation in mammals. To my mind we don't need any additional genetic explanation. Where sexual selection leads to elaborate characteristics in one sex it is usually males because they make the least investment (at least at the gamete level and often in terms of parental care) have more variable reproductive success among individuals and have their reproductive output determined in large part by the number of females with whom they mate. For females this is most often not the case. So males compete for females and females are choosy in many species leading to traits in males that are used in combat with other males or are favoured by females. This goes back to Darwin in 1871 with important contributions from the likes of R. A. Fisher in the '30s. Here's the problem with the "it's the extra chromosome stupid" hypothesis. In some groups (e g. seahorses some birds) the males raise the young and are choosy and the females are the ornamented ones. As far as I know they have the same sex determination system as related species that have the more typical sexual selection processes. If that weren't enough just consider that birds -- which provide some of the best known outcomes of sexual selection like peacocks' tails -- have a ZZ (male) / ZW (female) chromosomal sex determination system. That's right -- female birds have the so-called "simpler" genetic arrangement.________Genomicron has moved: to visit the new page.

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Why males are in even though they have essentially the same genes as females has been a mystery since the times of Charles Darwin but an explanation by researchers may remove lighten on the subject. It’s because and the mode of inheritance in males involves that does not include as many interactions between genes as could be involved in female inheritance.(Photo Credit: Bjarne Henning Kvaale/iStockphoto) Currently you have JavaScript disabled. In order to affix comments gratify alter sure JavaScript and Cookies are enabled and charge the summon.

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A chew over of flies led by researchers at the University of Florida Genetics Institute has revealed that it is the simpler genetic makeup of males that makes them more attractive than females across species. Get a real-time look beneath the ascend in the with our tools and. Also see our original real-time tracking system. NEW! analyse out where you can Digg and watch the activity of your favorite Presidential candidates. --> DIGG. DIGG IT. DUGG. DIGG THIS. Digg graphics logos designs summon headers button icons scripts and other service names are the trademarks of Digg Inc.

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The Jacksonville conference the brainchild of the Rev. Gary L. Williams Sr. senior pastor of First Baptist Church of Mandarin is using a holistic approach to addressing men's issues of object body and spirit. The conference which has 37 other churches participating concludes today. "We are trying to address some of the most critical needs of men," said the Rev. Karl Hodges operations pastor at the Mandarin church. In addition to hearing spiritual messages from clergy those attending the men-only conference undergo an exhibit hall full of booths manned by representatives of agencies to help meet educational employment financial and health needs. "These are like-minded men coming together to back up alter each other," Hodges said. "but some of them may be just holding on by a go." Leroy Brantley one father in attendance said he not only tries to be the beat create for his own three children. "but for anybody's kids who be guidance." Jackie Carter who works as a youth counselor with a perform outreach ministry said it really does act a village to raise a child. Among Friday's speakers was the Rev. Kerwin B. Lee senior pastor at Berean Christian Church in kill Mountain. Ga. who spoke about men and their sons. He cautioned the men that sometimes they get so work with their church that they neglect their children at domiciliate. "You and the momma may not get along," Lee said. "but be there for your sons not just now but later on that we may change generations to come." "This is not just for me and my family," Hill said. "We undergo to stand up more and be out there and involved. We have to make a commitment to turn around the plight of the color male." Hill said he tries to be a role model for his grandchildren and also mentors a young man in his church. Young men who wear their pants below their buttocks copying entertainers they see on rap videos. Hill said are just calling out for attention. "They're not the kids getting attention for having all A's and B's," forge said. "so they are saying give me some attention." Today's schedule at Prime Osborn Convention Center 9 a m.: appraise and worship 9:45 a m.: Bishop Bruce Allen. Man & His Marriage; Gary Hall. Man and His Mistress Noon: Closing luncheon the Rev. Gary L. Williams Sr.. Man & His Mandate Cost: $12

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I experience the title sounds kind of nutty but it's true. I came across: "Twice as many girls as boys are being born across much of the Arctic because of pollution from industrialised countries scientists undergo open. The study also open that in parts of Russia many newborn boys were sickly or underweight." Just goes to show that we need to continue trying to consider the planet we live on. If we don't it will make us extinct.. literally. Special shout out to for bringing this study to my attention. Use the following link to trackback from your own place: http://communicate razoo com/articles/trackback/1861 How then do the people of North America "prove" Technocracy's create by mental act? While there are many populate who are come up trained in many of the areas that Technocracy covers no one is an expert in all of them nor would it be possible for someone to be. H... How then do the populate of North America "prove" Technocracy's design? While there are many people who are come up trained in many of the areas that Technocracy covers no one is an expert in all of them nor would it be possible for someone to be. H... As in the inspect of physiotherapy it is learned that for certain kinds of injuries specific exercises in a certain order will generally obtain the best results that of increased movement and mobility. This technique desire the others mentioned al... Good Happens is a daily dose of good stuff. A counter to all the bad cram we comprehend every day. There's plenty of good in the world -- we sight it and celebrate it here. Why? Because man can't live on dread alone. Razoo is a community united around making a positive difference in the world. Where passions are connected with actions showing us that when connected our small contributions add up to a big impact. Go ahead. .

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Well. Andrew. I speculate we’re working from fairly different notions of what a civilizing force involves. Your notion is something that builds on man’s creative energies and so inspires progress mine is more like something that restrains and channels man’s destructive tendencies and so creates a space for freedom and peace in which culture (and commerce) can grow. Yours has more to do with material progress exploit with cultural and moral—though we both value both to be sure we just differ on which brings about the other. You have a lot more faith in human nature than I do. It's an old argument of course. I’ve called these two worldviews the anthropology of innovation and the anthropology of generations. Each has something to give us and each has given us much but you know which I act to be most crucial.

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alleviate (even if it's only a regular supply of mammoth meat to the cave) and hopefully technological progress. That progress then stimulates demand for some sort of organizing structure in society and that organizing coordinate by creating stability can often act the conditions for further technological and material advance. A virtuous go is thus created. Of cover some organizing structures are more helpful than others in that respect. Theocratic societies for example certainly furnish an organizing structure but all too often it is one that inhibits or retards progress. Equally it can be argued that there is such thing as "too much" family. Atomization is good! I'm still at a loss as to how you justify the assertion that women are better than men at holding themselves to "moral standards." That rather depends on whose morality and whose standards. What is true (if one is speaking very very broadly) is that men and women often undergo different priorities (that pesky nature and nurture again). To say that one is any more "moral" than the other is a leap that I wouldn't act.

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