Navigation Links
Males' superior spatial ability likely is not an evolutionary adaptation
Date:2/19/2013

to "creation stories" that seek to explain sexual phenomena like the female orgasm, rape or menopause by hypothesizing that they evolved because they provided an evolutionary advantage. Some evolutionary psychologists describe rape, for example, as an alternate mating strategy for males who otherwise are reproductively unsuccessful. Others say menopause evolved in women to enhance the survival of their genes by increasing the time spent nurturing their grandchildren. Some of these hypotheses seem intuitive, Rhodes said. "But these stories generally are not testable."

Researchers tend to overlook the fact that many physical and behavioral traits arise as a consequence of random events, or are simply side effects of other changes that offer real evolutionary advantages, he said.

"For example, women have nipples because it's an adaptation; it promotes the survival of their offspring," Rhodes said. "Men get it because it doesn't harm them. So if we see something that's advantageous for one sex, the other sex will get it because it's inheriting the same genes unless it's bad for that sex."

Similarly, scientists who claim that the different spatial skills in men and women are adaptive must explain why women failed to inherit the superior spatial skills of their navigationally enhanced fathers, Rhodes said.

"The only way you will get a sex difference (in an adaptive trait) is where a trait is good for one sex and bad for the other," he said. "But how is navigation bad for women? This is a flaw in the logic."

"When people hear arguments made or stories told, particularly about human behaviors being products of adaptation, I think they should ask the question: 'Where is the evidence?' " Rhodes said.

Rhodes is an affiliate of the Beckman Institute for Advanced Science and Technology at Illinois.


'/>"/>

Contact: Diana Yates
diya@illinois.edu
217-333-5802
University of Illinois at Urbana-Champaign
Source:Eurekalert  

Page: 1 2

Related medicine news :

1. Researchers Detect an Anti-Autism Advantage in Females
2. New OHSU research helps explain early-onset puberty in females
3. Males Struck by Cars Die More Often Than Females: Study
4. Survival of the females
5. High hormone levels put young black males at risk for cardiovascular disease
6. Asthma is all in the family among African males
7. Uncertain about health outcomes, male stroke survivors more likely to suffer depression than females
8. Rare brain blood vessel disease carries higher risks in females
9. Male Ontario students show declines in fighting; females show elevated bullying and mental distress
10. Females, Young Athletes Take Longer to Get Over Concussions
11. Red Cliff Band of Lake Superior Chippewa, Lake Superior Barrels Project Field Work
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Males' superior spatial ability likely is not an evolutionary adaptation
(Date:7/11/2014)... Presently, disposable medical suppliers call for the ... segment. During the past two decades, the world market ... average 12.5% per year), primarily owing to the importance ... is the largest market for disposable medical supplies in ... second position is held by Europe with a 29% ...
(Date:7/11/2014)... July 11, 2014 The Corn ... years to 2014 on the heels of fresh biofuel ... farmers to dedicate a larger share of their farmland ... specifically, the regulations required the mixing of 5.0% renewable ... production in the United States created a key export ...
(Date:7/11/2014)... Ticket Down is a reliable source ... Amphitheatre in Wheatland, CA. In the Sacramento California ... the Sleep Train Amphitheatre can do for music fans. The ... the course of its existence and can seat 18,500 fans ... Wheatland (Sacramento metro area) will host the “That’s My Kind ...
(Date:7/11/2014)... Pigments are insoluble colorants, which usually consist of ... coating, opacity, and coloring. These are water and oil ... substances such as paper, paints, plastics, and concrete. Binders ... impart color to the substance. Some examples of pigments ... , The coloring action of pigments is due to ...
(Date:7/11/2014)... York, NY (PRWEB) July 11, 2014 ... dramatic increase in men seeking cosmetic surgery and hair ... year. With such an expansive range of medical tourism ... exceptional plastic surgery costs and achieve the ... to be renowned as the top name in the ...
Breaking Medicine News(10 mins):Health News:Global Disposable Medical Supplies Market to See Robust Growth Through Next Decade, According to New TriMark Report Available at MarketPublishers.com 2Health News:Global Disposable Medical Supplies Market to See Robust Growth Through Next Decade, According to New TriMark Report Available at MarketPublishers.com 3Health News:Corn Farming in Canada Industry Market Research Report Now Available From IBISWorld 2Health News:Corn Farming in Canada Industry Market Research Report Now Available From IBISWorld 3Health News:Luke Bryan Tickets Sleep Train Amphitheatre in Wheatland, CA (Sacramento): Ticket Down has Slashed Ticket Prices on Luke Bryan in Wheatland at Sleep Train 2Health News:Luke Bryan Tickets Sleep Train Amphitheatre in Wheatland, CA (Sacramento): Ticket Down has Slashed Ticket Prices on Luke Bryan in Wheatland at Sleep Train 3Health News:Americas Pigments Market Worth 1,099 Thousand MT by 2018 - New Report by MicroMarket Monitor 2Health News:Americas Pigments Market Worth 1,099 Thousand MT by 2018 - New Report by MicroMarket Monitor 3Health News:VisitandCare.com Reports Increase in Cosmetic and Hair Transplant Procedures for Men 2Health News:VisitandCare.com Reports Increase in Cosmetic and Hair Transplant Procedures for Men 3
... a 47-year-old man who had worked for a Hindustan Lever ... who had also been exposed to toxic mercury, to the ... than 500 protestors, who said he had been slowly poisoned ... an autopsy to assess the possibility of mercury-induced damage. ...
... new study examined the connection between Baltimore City’s needle ... ,Individuals who enter treatment programs for drug addiction were ... Baltimore City needle exchange programs. ,The ... of Public Health highlights the need for treatment facilities ...
... always the result of a subtle marriage between a ... an appropriate excipient// (a neutral substance in which the ... absorbed by the body). Thus the necessary tablet, capsule ... biodegradable materials were used instead of these neutral excipients? ...
... multiple positive social outcomes,// research conducted in rural ... of the Journal of Acquired Immune Deficiency Syndromes ... appear to lead to stigmatisation or an increase ... increase in the incidence of domestic violence against ...
... transition service has been instituted by the NHS trust to ... ,‘Minding the Gap’, a document enabled by ... regular service for 16- to 18-year-olds, in Durham and Darlington. ... out to the teenagers suffering health problems across six primary ...
... Complementary //and Alternative Medicine (NCCAM) at the National Institutes ... better, especially about alternative therapies they are trying out ... ,This is the outcome of a survey conducted ... 1600 patients, and their doctors. ,It ...
Cached Medicine News:Health News:Ex-workers Ask HLL to Accept Liability for Mercury Deaths 2Health News:Drug Treatment Seekers Likely to Use Needle Exchange 2Health News:New Generation - Medicinal Products 2Health News:New Generation - Medicinal Products 3Health News:HIV Home-based Care Produces Positive Outcomes in Uganda 2Health News:HIV Home-based Care Produces Positive Outcomes in Uganda 3Health News:Elderly Patients Usually Keep Mum About Use of Alternative Medicine , Reveals Survey 2
(Date:7/10/2014)... U.S. Department of Health and Human Services (HHS) has ... Medical Center Seidman Cancer Center totaling $4.7 million to ... for patients with complex cancer. Titled ... model developed at UH to enhance care for adult ... need for high health care utilization.  ...
(Date:7/10/2014)... DIEGO , July 10, 2014  RESMED INC. (NYSE: ... its fourth quarter and fiscal year ended June 30, 2014 ... Stock Exchange market close. A press release with ResMed,s results ... the company will host a webcast to discuss operating results ... to begin at 1:30 p.m. US Pacific Time and the ...
(Date:7/10/2014)... -- Valeant Pharmaceuticals International, Inc. (NYSE: VRX ... sale to Galderma of all rights to Restylane, Perlane, ... for $1.4 billion in cash, pursuant to the previously ... acquisition of Galderma. "We are pleased ... company that is firmly committed to the aesthetic dermatology ...
Breaking Medicine Technology:University Hospitals Case Medical Center Awarded $4.7 Million Grant from U.S. Department of Health and Human Services 2University Hospitals Case Medical Center Awarded $4.7 Million Grant from U.S. Department of Health and Human Services 3University Hospitals Case Medical Center Awarded $4.7 Million Grant from U.S. Department of Health and Human Services 4ResMed To Announce Fourth Quarter And Fiscal Year-End 2014 Results 2
... 30, 2011 David N. Jonas, CEO, PharMEDium ... investments for innovations with an unprecedented focus on ... with a steady stream of technologically-driven service advancements.  Working ... safety and quality , PharMEDium ...
... 30, 2011 Reportlinker.com announces that a new ... catalogue: Pharmaceutical Distributors - ... This register contains information ... Europe. The register includes the following information ...
Cached Medicine Technology:PharMEDium's Technology Helps Hospital Pharmacists Ensure Safety 2
... Instrument program offers state-of-the-art quality in an ... strength and durability. Low profile cutting tips ... spaces. Series I instruments are available in ... and angle required for large and small ...
... program offers state-of-the-art quality in an instrument ... and durability. Low profile cutting tips allow ... Series I instruments are available in just ... angle required for large and small joint ...
... The WideBiter Punch series facilitates fast ... recreating a smooth, anatomically shaped meniscal rim. ... low profile to access even the tightest ... Arthrex California, Inc., 20 years of engineering ...
... The WideBiter Punch series facilitates fast and ... a smooth, anatomically shaped meniscal rim. The ... profile to access even the tightest joint ... California, Inc., 20 years of engineering experience ...
Medicine Products: