Males

Some articles on males, male:

Testosterone
... In mammals, testosterone is primarily secreted in the testicles of males and the ovaries of females, although small amounts are also secreted by the adrenal glands ... It is the principal male sex hormone and an anabolic steroid ... In men, testosterone plays a key role in the development of male reproductive tissues such as the testis and prostate as well as promoting secondary ...
Onychophora - Anatomy - Reproductive Organs
... called the receptacle seminis, in which sperm cells from males can be stored temporarily or for longer periods ... Males possess two separate testes, along with the corresponding sperm vesicle (the vesicula seminalis) and exit channel (the vasa efferentia) ... A penis-like structure has so far only been found in males of the genus Paraperipatus but has not yet been observed in action ...
Kakapo - Ecology and Behaviour - Reproduction
... Males loosely gather in an arena and compete with each other to attract females ... Females listen to the males as they display, or "lek" ... They choose a mate based on the quality of his display they are not pursued by the males in any overt way ...
Wild Boar - Behaviour and Social Structure
... Adult males are usually solitary outside of the breeding season, but females and their offspring (both sub-adult males and females) live in groups called sounders ... females, the migration of maturing males (usually when they reach around 20 months) and the arrival of unrelated sexually active males ... The male lowers its head, charges, and then slashes upward with its tusks ...
Common Chimpanzee - Behavior - Mating and Parenting
... to be promiscuous, with females mating with multiple males in her community during estrus ... As such, males have large testicles for sperm competition ... A community's dominant males sometimes restrict reproductive access to females ...

Famous quotes containing the word males:

    For a boy to reach adulthood feeling that he knows his father, his father must allow his emotions to be visible—hardly an easy task when most males grow up being either subtly or openly taught that this is not acceptable behavior. A father must teach his son that masculinity and feelings can go hand in hand.
    Kyle D. Pruett (20th century)

    If combat means living in a ditch, females have biological problems staying in a ditch for 30 days because they get infections.... Males are biologically driven to go out and hunt giraffes.
    Newt Gingrich (b. 1943)

    Of course, some men are very effective caregivers [of elderly parents]. But this situation occurs far less frequently for males than females, because it is a role reversal. For women, caregiving is an expected duty; for men, it is an unexpected expression of love or devotion.
    Tish Sommers (20th century)