Related Experiment Video

Updated: Aug 18, 2026

A Common Marmoset Model of Mother-Infant Intervention for Breastfeeding Disorders in the Presence of Paternal Inhibition and Maternal Neglect
05:04

A Common Marmoset Model of Mother-Infant Intervention for Breastfeeding Disorders in the Presence of Paternal Inhibition and Maternal Neglect

Published on: September 22, 2023

Who remains childless?

K E Kiernan

    Journal of Biosocial Science
    |October 1, 1989
    PubMed

    Keywords:
    BehaviorDemographic FactorsDeveloped CountriesDivorceEconomic FactorsEducational StatusEuropeFamily And HouseholdFamily DemographyFamily ResearchFertilityMarriageMarriage PostponementNorthern EuropeNuptialityPopulationPopulation DynamicsPsychological FactorsReproductive BehaviorResearch ReportSocioeconomic FactorsSocioeconomic StatusUnited KingdomVoluntary Childlessness--determinantsWomen's Status

    More Related Videos

    Z-Scores for Assessing Ovarian Reserve in Young Patients Undergoing Fertility Preservation05:42

    Z-Scores for Assessing Ovarian Reserve in Young Patients Undergoing Fertility Preservation

    Published on: October 25, 2024

    Collection of Human Follicular Fluid, Follicle Somatic Cells, and Immature Oocytes from Individuals Undergoing In Vitro Fertilization06:40

    Collection of Human Follicular Fluid, Follicle Somatic Cells, and Immature Oocytes from Individuals Undergoing In Vitro Fertilization

    Published on: October 24, 2025

    Related Concept Videos

    Parental Care00:55

    Parental Care

    Many animals exhibit parental care behavior, including feeding, grooming, and protecting young offspring. Parental care is universal in mammals and birds, which often have young that are born relatively helpless. Several species of insects and fish, as well as some amphibians, also care for their young.
    Non-nuclear Inheritance01:29

    Non-nuclear Inheritance

    Most DNA resides in the nucleus of a cell. However, some organelles in the cell cytoplasm⁠—such as chloroplasts and mitochondria⁠—also have their own DNA. These organelles replicate their DNA independently of the nuclear DNA of the cell in which they reside. Non-nuclear inheritance describes the inheritance of genes from structures other than the nucleus.
    Infertility in Males01:23

    Infertility in Males

    Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
    Infertility in Females01:28

    Infertility in Females

    Female infertility is defined as the inability to conceive after a year of regular, unprotected intercourse and affects about 10–15% of couples worldwide. The primary cause of female infertility is ovulatory disorders, which hinder the release of eggs. These disorders can be classified as hypothalamic amenorrhea, polycystic ovarian syndrome (PCOS), premature ovarian failure, and hyperprolactinemic anovulation disorders.
    Endometriosis, a condition characterized by abnormal growth of endometrial...
    Parenting Styles01:27

    Parenting Styles

    Diana Baumrind's four parenting styles — authoritarian, authoritative, neglectful, and permissive — each influence children's socio-emotional development differently.
    Authoritarian Parenting
    This style is strict and controlling, with little room for open dialogue. Authoritarian parents demand obedience and often enforce rules with minimal warmth. Children raised this way may lack social skills and initiative, usually comparing themselves to others unfavorably.
    Authoritative Parenting
    This...
    Relationship with Other Adult Family Members and Siblings01:29

    Relationship with Other Adult Family Members and Siblings

    Other adult family members and siblings play a crucial role in shaping children’s social and emotional development. While parents or primary caregivers are often the central figures in early attachment and socialization, other adults in a child’s life, such as grandparents, aunts, and uncles, can significantly influence developmental outcomes. These influences depend on each adult’s personality and may help compensate when a primary caregiver is emotionally distant or inconsistent. For...