(PhysOrg.com) -- New research suggests that grandparents naturally and subconsciously favor the grandchildren who are most closely related to them genetically. The phenomenon is called "sexually antagonistic grandparental ...
A study conducted at the University of Turku shows that investment by maternal grandmothers can improve the well-being of grandchildren who have faced adversities in life. The positive effects can last well into adulthood. ...
Social Sciences
Apr 25, 2024
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180
The number of relatives that an individual has is expected to decrease by more than 35% in the near future. At the same time, the structure of families will change. The number of cousins, nieces, nephews and grandchildren ...
Social Sciences
Jan 8, 2024
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469
Anyone who has ever loved a grandmother or grandfather knows the nurturing role that grandparents can play. A study of indigenous people in Amazonia, who survive on food they hunt, forage or cultivate, quantifies the evolutionary ...
Social Sciences
Feb 12, 2015
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342
(Phys.org)—Younger Americans not only take on relatively more credit card debt than their elders, but they are also paying it off at a slower rate, according to a first-of-its-kind study.
Economics & Business
Jan 14, 2013
10
1
(PhysOrg.com) -- If you looked around at your family some 40,000 years ago, you would not have seen grandparents as the likelihood of a person passing their 30th birthday was slim. However, according to new research reported ...
At one time or another most of us wonder where we came from, where our parents or grandparents and their parents came from. Did our ancestors come from Europe or Asia? As curious as we are about our ancestors, for practical ...
Evolution
Aug 14, 2009
5
1
Mothers whose parents help out with childcare are more likely to show their children parental warmth than mothers who do not receive any support, finds a study led by Nanyang Technological University, Singapore (NTU Singapore) ...
Social Sciences
Jul 1, 2024
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41
Minnesota saw a 58% decline of the moose population in the northeastern part of the state between 2006 and 2017. A primary driver of the decline is brainworm, a parasite that affects the animal's nervous system ultimately ...
Ecology
Aug 22, 2023
0
12
Over the past 20 years, housing prices in Canada have increased at double the rate of income growth. As a result, a growing number of Canadian households are grappling with housing affordability.
Social Sciences
Aug 16, 2022
0
5
Grandparents are the parents of a person's own parent, whether that be a father or a mother. Every sexually-reproducing creature who is not a genetic chimera has a maximum of four genetic grandparents, eight genetic great-grandparents, sixteen genetic great-great-grandparents, etc. Rarely, such as in the case of sibling or half-sibling incest, these numbers are lower. In the history of modern humanity, around 30,000 years ago, the number of modern humans who lived to be grandparents began to skyrocket. It is not known for certain what spurred this increase in longevity. But it is believed that a key consequence of three generations being alive together was the facilitation of the passing along of information that prior to that point would have been lost; an example of this important information might have been where to find water in times of drought.
In cases where parents are unwilling or unable to provide adequate care for their children (e.g., death of the parents), grandparents often take on the role of primary caregivers. Even when this is not the case, and particularly in traditional cultures, grandparents often have a direct and clear role in relation to the raising, care and nurture of children.
One can also be a step-grandparent. A step-grandparent can be one's parent's step-parent or one's step-parent's parent. The various words for grandparents at times may also be used to refer to any elderly person, especially the terms gramps, granny, grandfather, grandmother and even more types that most families make up themselves.
This text uses material from Wikipedia, licensed under CC BY-SA
