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The term non-paternity event was first used in 2000 in a study of the surname "Skyes" and the Y-chromosome haplotype to denote if non-Skyes males had been introduced into the family line. [3] Bellis et al. (2005) stated that non-paternity "occurs when a child is believed to have been fathered by the husband (or partner) but is actually the ...
Siblicide (attributed by behavioural ecologist Doug Mock to Barbara M. Braun) is the killing of an infant individual by its close relatives (full or half siblings). It may occur directly between siblings or be mediated by the parents, and is driven by the direct fitness benefits to the perpetrator and sometimes its parents.
Generally, these children are her biological offspring, although adoption of children occurs in nearly every society. This kind of family occurs commonly where women have the resources to rear their children by themselves, or where men are more mobile than women. As a definition, "a family or domestic group is matrifocal when it is centred on a ...
A family of choice, also known as a chosen family, found family, or hānai family [1] is a term that refers to a non-biologically related group of people established to provide ongoing social support.
A dysfunctional family is a family in which conflict, misbehavior and often child neglect or abuse on the part of individual parents occur continuously and regularly. Children that grow up in such families may think such a situation is normal .
There are no rules for how many species should make a genus, a family, or any other higher taxon (that is, a taxon in a category above the species level). [52] [53] It should be a natural group (that is, non-artificial, non-polyphyletic), as judged by a biologist, using all the information available to them. Equally ranked higher taxa in ...
Ambiguous loss is a loss that occurs without a significant likelihood of reaching emotional closure or a clear understanding. [1] [2] This kind of loss leaves a person searching for answers, and thus complicates and delays the process of grieving, and often results in unresolved grief.
In probability theory, an event is a subset of outcomes of an experiment (a subset of the sample space) to which a probability is assigned. [1] A single outcome may be an element of many different events, [2] and different events in an experiment are usually not equally likely, since they may include very different groups of outcomes. [3]