. Earth Science News .
Maternal Grandparents More Involved In The Lives Of Their Grandchildren

Throughout human evolution, women were always related by certain maternity, whereas men could never be wholly certain that they are the biological father. Also, maternal grandparents were always more certain than paternal grandparents that a grandchildren was related to them. Thus, maternal grandparents, especially maternal grandmothers, may go the extra mile to visit their grandchildren.
by Staff Writers
Newcastle, UK (SPX) Dec 19, 2007
As families gather round for the winter holidays, some faces may be more familiar than others. A recent study shows that the amount of social interaction between extended family members depends on whether people are related through their mother or father. Thomas Pollet and colleagues at Newcastle University and the University of Antwerp, Belgium, investigated how far maternal grandparents and paternal grandparents will go to maintain face-to-face contact with their grandchildren.

They found that maternal grandparents were willing to travel further in order to sustain frequent (daily or a few times a week) contact with their grandchildren than paternal grandparents.

Mr Pollet says, "As the festive period approaches, we can still see that family get-togethers are integral to the celebrations. Many people will be going the extra mile to ensure they meet up - and we've found that's particularly important if family members are related through mothers."

"Even in families where there has been divorce, we found consistent differences - grandparents on your mother's side make the extra effort. We believe there are psychological mechanisms at play because throughout history, women are always related by maternity whereas men can never be wholly certain they are the biological father to their children."

The authors interpret their findings as support for psychological patterns resulting from our evolutionary history. Family members related through their mothers (matrilineal kin) are predicted to matter more than those related through their fathers (patrilineal kin).

Throughout human evolution, women were always related by certain maternity, whereas men could never be wholly certain that they are the biological father. Also, maternal grandparents were always more certain than paternal grandparents that a grandchildren was related to them. Thus, maternal grandparents, especially maternal grandmothers, may go the extra mile to visit their grandchildren.

For grandparents living within 19.5 miles (30 km) of their grandchildren, over 30% of the maternal grandmothers had contact daily or a few times a week. Around 25% of the maternal grandfathers had contact daily or a few times a week. In contrast, only around 15 % of the paternal grandmothers and little more than 15% of the paternal grandfathers would have contact daily or a few times a week.

The research which is published in the latest edition of the journal Evolutionary Psychology, was conducted on a sample of over 800 grandparents from a representative Dutch sample (The Netherlands Kinship Panel Study - www.nkps.nl ). The analyses controlled for other factors such as grandparental and child age, marital status, and number of children.

Community
Email This Article
Comment On This Article

Related Links
Newcastle University
All About Human Beings and How We Got To Be Here



Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News


Researchers Reveal The Biology Of Shivering
Portland OR (SPX) Dec 18, 2007
Researchers at Oregon Health and Science University's Neurological Sciences Institute have uncovered the system that tells the body when to perform one of its most basic defenses against the cold: shivering. The scientists have discovered the brain's wiring system, which takes temperature information from the skin and determines when a person should start shivering. Their findings are published in the advance online edition of the journal Nature Neuroscience.







  • Progress solid on Indonesian tsunami reconstruction: donors
  • A Gizmo That Saves Lives
  • Indonesia hands over 100,000th tsunami house in Aceh
  • Death toll from Tropical Storm Olga rises to at least 40

  • Adapt to climate change, World Bank chief tells developing nations
  • Drought hits over a million people in southern China: report
  • Analysis: What did Bali achieve
  • Global warming pact set for 2009 after US backs down

  • ASU Researchers Use NASA Satellites To Improve Pollution Modeling
  • Study Shows Urban Sprawl Continues To Gobble Up Land
  • Outside View: Russia's new sats -- Part 2
  • Use Space Technology And IT For Rural Development

  • SAFE Proclaims Energy Victory Proudest Moment of This Congress
  • Gas deal unlikely during Japan PM's China trip: ministers
  • China sets up key agency to manage oil reserves
  • Energy, Housing and Recycling Advances To Be Unveiled At TMS 2008 Annual Meeting

  • China's father-son bird flu cases have not spread: official
  • AIDS on agenda as Bush meets Nigerian leader
  • Uganda Ebola epidemic claims four more lives
  • Most Ancient Case Of Tuberculosis Found In 500,000-Year-Old Human; Points To Modern Health Issues

  • Lost Worlds Of West Papua Reveal More Surprises
  • Ant Invaders Eat The Natives, Then Move Down The Food Chain
  • Research Finds Rodents Thrive Near Highways
  • Immediate Action Needed To Save Corals From Climate Change

  • Biochip Mimics The Body To Reveal Toxicity Of Industrial Compounds
  • Ship with toxic load sinking on China's Yangtze river: official media
  • Heavy Traffic Makes Breathing A Burden In Children
  • Air Quality Forecasts See Future In Space

  • Researchers Reveal The Biology Of Shivering
  • Monkeys Can Perform Mental Addition
  • Maternal Grandparents More Involved In The Lives Of Their Grandchildren
  • Losses Of Long-Established Genes Contribute To Human Evolution

  • The content herein, unless otherwise known to be public domain, are Copyright 1995-2007 - SpaceDaily.AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement