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  2. Inbreeding - Wikipedia

    en.wikipedia.org/wiki/Inbreeding

    Specifically, written documents such as the Bible illustrate that there have been laws and social customs that have called for the abstention from inbreeding. Along with cultural taboos, parental education and awareness of inbreeding consequences have played large roles in minimizing inbreeding frequencies in areas like Europe.

  3. Incest in the Bible - Wikipedia

    en.wikipedia.org/wiki/Incest_in_the_Bible

    John Calvin did not consider the father-daughter-relation to be explicitly forbidden by the Bible, but regarded it as immoral nevertheless. [ 36 ] Apart from the case of the daughter, the first incest list in Leviticus roughly produces the same rules as applied in early (pre-Islamic) Arabic culture; [ 1 ] in Islam , these pre-Islamic rules were ...

  4. Penile-vaginal intercourse - Wikipedia

    en.wikipedia.org/wiki/Penile-vaginal_intercourse

    Penile-vaginal intercourse or vaginal intercourse is a form of penetrative sexual intercourse in human sexuality, in which an erect penis is inserted into a vagina. [1] Synonyms are: vaginal sex, cohabitation, coitus (Latin: coitus per vaginam), (in elegant colloquial language) intimacy, or (poetic) lovemaking.

  5. File:Complete Penile Erection Process.ogv - Wikipedia

    en.wikipedia.org/wiki/File:Complete_Penile...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses ...

  6. Accidental incest - Wikipedia

    en.wikipedia.org/wiki/Accidental_incest

    In 2008, during a debate on the Human Fertilisation and Embryology Act 2008 in the House of Lords, Lord Alton of Liverpool claimed that a British brother and sister, who were twins separated at birth, married without knowing of their relationship. According to Lord Alton, the relationship was discovered soon after their wedding, and the ...

  7. Human reproduction - Wikipedia

    en.wikipedia.org/wiki/Human_reproduction

    Human reproduction naturally takes place as internal fertilization by sexual intercourse. During this process, the man inserts his erect penis into the woman's vagina and then either partner initiates rhythmic pelvic thrusts until the man achieves orgasm , which leads to ejaculation of semen containing sperm into the vaginal canal.

  8. Hermaphrodite (Nadar) - Wikipedia

    en.wikipedia.org/wiki/Hermaphrodite_(Nadar)

    Nadar, the photographer. Hermaphrodite is a series of photographs of a young intersex person, who had a male build and stature and may have been assigned female or self-identified as female, taken by the French photographer Nadar (real name Gaspard-Félix Tournachon) in 1860.

  9. Consanguinity - Wikipedia

    en.wikipedia.org/wiki/Consanguinity

    Inbreeding – Reproduction by closely related organisms; Inbreeding avoidance – Evolutionary biology concept of prevention of negative inbreeding effects; Inbreeding depression – Reduced fitness as a result of inbreeding; Incest – Sexual activity between immediate family members or people considered too closely related to marry