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  2. Seasonal breeder - Wikipedia

    en.wikipedia.org/wiki/Seasonal_breeder

    The breeding season is when seasonal breeders reproduce. Various variables can affect when it occurs. [3] A primary influence on the timing of reproduction is food availability. Organisms generally time especially stressing events of reproduction to occur in sync with increases in food availability.

  3. Spermatogenesis - Wikipedia

    en.wikipedia.org/wiki/Spermatogenesis

    The spermatids are transformed into spermatozoa (sperm) by the process of spermiogenesis. These develop into mature spermatozoa, also known as sperm cells. [2] Thus, the primary spermatocyte gives rise to two cells, the secondary spermatocytes, and the two secondary spermatocytes by their subdivision produce four spermatozoa and four haploid ...

  4. Mammalian reproduction - Wikipedia

    en.wikipedia.org/wiki/Mammalian_reproduction

    Gestation, called pregnancy in humans, is the period of time during which the fetus develops, dividing via mitosis inside the female. During this time, the fetus receives all of its nutrition and oxygenated blood from the female, filtered through the placenta , which is attached to the fetus' abdomen via an umbilical cord .

  5. Rut (mammalian reproduction) - Wikipedia

    en.wikipedia.org/wiki/Rut_(mammalian_reproduction)

    In elephants, the breeding season is less pronounced than in ungulates and it usually spikes when the rains season occurs or shortly thereafter. [28] [1] The rut is observed in both African and Asian elephants and it is referred to as musth. [29] Its meaning is derived from the Urdu word mast meaning intoxication. The most prominent ...

  6. Human reproduction - Wikipedia

    en.wikipedia.org/wiki/Human_reproduction

    Human sexual reproduction, to produce offspring, begins with fertilization. Successful reproduction typically involves sexual intercourse between a healthy, sexually mature and fertile male and female. [1] During sexual intercourse, sperm cells are ejaculated into the vagina through the penis, resulting in fertilization of an ovum to form a ...

  7. 22 Ways Men Can Make Their Orgasms Better - AOL

    www.aol.com/23-ways-men-orgasms-better-211300041...

    "You can’t expect for each small orgasm to feel like your usual orgasms," Jonathan Stegall, M.D., founder and president of the Center for Advanced Medicine in Atlanta, previously told Men's ...

  8. Sperm - Wikipedia

    en.wikipedia.org/wiki/Sperm

    Sperm quantity and quality are the main parameters in semen quality, which is a measure of the ability of semen to accomplish fertilization. Thus, in humans, it is a measure of fertility in a man . The genetic quality of sperm, as well as its volume and motility, all typically decrease with age . [ 17 ]

  9. Reproduction - Wikipedia

    en.wikipedia.org/wiki/Reproduction

    For example, a rabbit (mature after 8 months) can produce 10–30 offspring per year, and a fruit fly (mature after 10–14 days) can produce up to 900 offspring per year. These two main strategies are known as K-selection (few offspring) and r-selection (many offspring).