News tagged with grandmothers

Grandparents favor genetically close grandchildren

(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 ...

Biology / Evolution

created Apr 29, 2010 | popularity 4.3 / 5 (16) | comments 3 | with audio podcast report

Implanted tooth helps blind US woman recover sight

A 60-year-old US grandmother, blind for nearly a decade, has recovered her sight after surgeons implanted a tooth in her eye as a base to hold a tiny plastic lens, her doctors said Wednesday.

Medicine & Health / Other

created Sep 16, 2009 | popularity 4.4 / 5 (12) | comments 0

The importance of grandmothers in the lives of their grandchildren

(PhysOrg.com) -- It is widely believed that women live long post-reproductive lives to help care for their grandchildren. According to the "Grandmother Hypothesis," post-menopausal women can increase their ...

Biology / Evolution

created Oct 29, 2009 | popularity 4.3 / 5 (4) | comments 3

World population to hit 10 bln, but 15 bln possible: UN

The world's population of seven billion is set to rise to at least 10 billion by 2100, but could top 15 billion if birth rates are just slightly higher than expected, the United Nations said on Wednesday.

Other Sciences / Social Sciences

created Oct 26, 2011 | popularity 5 / 5 (3) | comments 16

Grandparent

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.

For more information about Grandparent, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.