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  2. Sex differences in human physiology - Wikipedia

    en.wikipedia.org/wiki/Sex_differences_in_human...

    The human brain. Differences in male and female brain size are relative to body size. [83] Early research into the differences between male and female brains showed that male brains are, on average, larger than female brains. This research was frequently cited to support the assertion that women are less intelligent than men.

  3. Puberty - Wikipedia

    en.wikipedia.org/wiki/Puberty

    During puberty, a male's erect penis becomes capable of ejaculating semen and impregnating a female. [26] [27] A male's first ejaculation is an important milestone in his development. [28] On average, a male's first ejaculation occurs at age 13. [29] Ejaculation sometimes occurs during sleep; this phenomenon is known as a nocturnal emission. [25]

  4. Sexual differentiation in humans - Wikipedia

    en.wikipedia.org/wiki/Sexual_differentiation_in...

    Dihydrotestosterone, also known as (DHT) will differentiate the remaining male characteristics of the external genitalia. [11] Further sex differentiation of the external genitalia occurs at puberty, when androgen levels again become disparate. Male levels of testosterone directly induce growth of the penis, and indirectly (via DHT) the prostate.

  5. Sexual dimorphism - Wikipedia

    en.wikipedia.org/wiki/Sexual_dimorphism

    Skeletons of female (left) and Male (right) black-casqued hornbills (Ceratogymna atrata). The difference between the sexes is apparent in the casque on the top of their bill. This pair is on display at the Museum of Osteology. Sexual dimorphism may also influence differences in parental investment during times of food scarcity.

  6. Sexual characteristics - Wikipedia

    en.wikipedia.org/wiki/Sexual_characteristics

    Male primary sex characteristics are the penis, the scrotum and the ability to ejaculate when matured. Female primary sex characteristics are the vulva, vagina, uterus, fallopian tubes, cervix, and the ability to give birth and menstruate when matured. [1] Hormones that express sexual differentiation in humans include: estrogens such as estradiol

  7. Women need to exercise and eat differently than men ... - AOL

    www.aol.com/news/women-know-exercise-nutrition...

    However, women are not physiologically the same as men — marked most plainly with the onset of menstruation at female puberty and two X chromosomes — and thus have often been given incomplete ...

  8. Phallic stage - Wikipedia

    en.wikipedia.org/wiki/Phallic_stage

    When children become aware of their bodies, the bodies of other children, and the bodies of their parents, they gratify physical curiosity by undressing and exploring each other and their genitals, the center of the phallic stage, in the course of which they learn the physical differences between the male and female sexes and their associated ...

  9. Women golfers rejoice after LPGA bars post-puberty males from ...

    www.aol.com/news/women-golfers-rejoice-lpga-bars...

    Multiple women's golfers came forward to praise and celebrate the LPGA's rule change on Wednesday that bars post-pubescent males from competing against females in pro competition. The organization ...