• Thumbnail for Human sperm competition
    there is a perceived or known increase in sperm competition risk. Sperm competition is not exclusive to humans, and has been studied extensively in other...
    30 KB (3,625 words) - 18:42, 3 December 2024
  • Thumbnail for Sperm competition
    Sperm competition is the competitive process between spermatozoa of two or more different males to fertilize the same egg during sexual reproduction....
    56 KB (6,914 words) - 20:53, 14 December 2024
  • Thumbnail for Human penis
    success and minimise sperm competition.[unreliable medical source?][unreliable medical source?] Sperm competition has caused the human penis to evolve in...
    65 KB (7,441 words) - 19:35, 13 December 2024
  • Sperm Wars is a popular science book by evolutionary biologist Robin Baker about sperm competition. Originally published in English in 1996, it has since...
    13 KB (1,528 words) - 21:40, 14 December 2024
  • Thumbnail for Sperm
    types in the adult human body Female sperm Female sperm storage Mendelian inheritance Polyspermy Sperm competition Sperm granuloma Sperm theft "Spermatium...
    30 KB (3,402 words) - 03:22, 16 December 2024
  • Thumbnail for Semen
    Semen (redirect from Human semen)
    a Sperm Competition Strategy in Humans]". Evolutionary Psychology. 2 (5): 12–23. doi:10.1177/147470490400200105. Dean, Dr. John. "Semen and sperm quality"...
    51 KB (5,148 words) - 06:16, 21 December 2024
  • Thumbnail for Cuckold
    humiliation Female dominance Female promiscuity Feminization (activity) Human sperm competition Kuckuckskind Monogamish Netorare Non-paternity event Open marriage...
    16 KB (1,701 words) - 14:13, 22 December 2024
  • Thumbnail for Mate guarding
    increase the likelihood of success of their own sperm fertilizing the eggs of females when competition is involved. Mate guarding behaviour can be pre-...
    6 KB (604 words) - 21:40, 17 October 2024
  • Thumbnail for Seduction
    evolution of human sexuality. New York: Oxford University Press. Smith, R. L. (1984). Human sperm competition. In R. L. Smith, Sperm competition and the evolution...
    30 KB (3,708 words) - 06:12, 12 November 2024
  • Thumbnail for Masturbation
    München. Baker, Robin R.; Bellis, Mark A. (November 1993). "Human sperm competition: Ejaculate adjustment by males and the function of masturbation"...
    132 KB (14,258 words) - 02:49, 24 December 2024
  • W.; Firman, R.E.C.; Rhodes, G.; Peters, M. (2004). "Human sperm competition: testis size, sperm production and rates of extrapair copulations". Animal...
    49 KB (6,167 words) - 15:21, 16 December 2024
  • Thumbnail for Robin Baker (biologist)
    bestseller Sperm Wars which was based on his own lab's original research on human sexuality. His work and ideas on the evolution of human behaviour have...
    12 KB (1,388 words) - 01:51, 30 May 2024
  • Thumbnail for Human mating strategies
    PMID 15216425. S2CID 16965002. Baker, R. R.; Bellis, M. A. (1995). Human sperm competition. London, England: Chapman & Hall. Barr, Alicia; Bryan, Angela;...
    163 KB (18,843 words) - 17:59, 19 November 2024
  • Monogamy (redirect from Human monogamy)
    W.; Firman, R.E.C.; Rhodes, G.; Peters, M. (2004). "Human sperm competition: testis size, sperm production and rates of extrapair copulations". Animal...
    113 KB (12,697 words) - 07:43, 19 December 2024
  • Thumbnail for Sexual jealousy
    Craig W. (2005-03-01). "Mate retention, semen displacement, and human sperm competition: a preliminary investigation of tactics to prevent and correct...
    40 KB (5,071 words) - 11:18, 8 July 2024
  • Thumbnail for Testicle
    Testicle (category Human male reproductive system)
    male bilaterians, including humans, and is homologous to the ovary in females. Its primary functions are the production of sperm and the secretion of androgens...
    61 KB (6,251 words) - 02:48, 24 December 2024
  • primates, including women, to encourage her partner to produce good-quality sperm during the mating process. Copulatory vocalizations usually occur during...
    26 KB (3,104 words) - 05:34, 28 July 2024
  • pressures of sperm competition. Such a situation is often deleterious to the female: in other words, the male–male competition among sperm spills over...
    14 KB (1,758 words) - 10:49, 30 October 2024
  • Orgasm (category Human sexuality)
    1016/0003-3472(95)80014-X. S2CID 44103857. Baker RR, Bellis MA (1993). "Human sperm competition: Ejaculate manipulation by females and a function for the female...
    147 KB (15,755 words) - 15:27, 17 December 2024
  • Thumbnail for Human penis size
    explain humans' relatively large penis length and girth include a sperm competition hypothesis and a mate competition hypothesis. The sperm competition hypothesis...
    72 KB (8,522 words) - 04:08, 24 December 2024
  • Thumbnail for Gamete
    heterogamy that applies to humans and other mammals. The human ovum has approximately 100,000 times the volume of a single human sperm cell. The type of gamete...
    12 KB (1,360 words) - 17:29, 19 November 2024
  • Pregnancy from rape (category Human pregnancy)
    Smith, Robert L. (2005). "Human sperm competition". In Shackelford, Todd K.; Pound, Nicholas (eds.). Sperm Competition in Humans: Classic and Contemporary...
    52 KB (6,004 words) - 15:45, 29 September 2024
  • Thumbnail for Mate guarding in humans
    rivals. It has been observed in many non-human animals (see mate guarding and sperm competition), as well as humans. Sexual jealousy is a prime example of...
    21 KB (2,982 words) - 14:32, 11 November 2024
  • introduction of sperm (semen) into a female or hermaphrodite's reproductive system in order to fertilize the ovum through sexual reproduction. The sperm enters...
    14 KB (1,535 words) - 17:21, 18 December 2024
  • Thumbnail for Mating plug
    Mating plug (redirect from Sperm plug)
    factor in fertilization. The mating plug plays an important role in sperm competition and may serve as an alternative and more advantageous strategy to...
    14 KB (1,460 words) - 03:04, 29 October 2024
  • complement. Sperm heteromorphism is also called sperm polymorphism or sperm dimorphism (for species with two sperm types). Typically, only one sperm type is...
    7 KB (882 words) - 22:29, 23 April 2024
  • Thumbnail for Ejaculation
    Ejaculation is the discharge of semen (the ejaculate; normally containing sperm) from the penis through the urethra. It is the final stage and natural objective...
    38 KB (4,022 words) - 13:03, 17 December 2024
  • Thumbnail for Sexual selection in mammals
    selection, including sexual selection in humans, and in other mammals, consisting of male–male competition and mate choice that mold the development...
    31 KB (3,527 words) - 17:08, 19 February 2024
  • Thumbnail for Female sperm storage
    Female sperm storage is a biological process and often a type of sexual selection in which sperm cells transferred to a female during mating are temporarily...
    26 KB (3,248 words) - 23:14, 17 October 2024
  • Thumbnail for Sex
    convention, organisms that produce smaller, more mobile gametes (spermatozoa, sperm) are called male, while organisms that produce larger, non-mobile gametes...
    66 KB (7,705 words) - 21:18, 1 December 2024