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Male - Wikipedia, the free encyclopedia
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Male
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This article is about the Male sex. For the city, see
Malé. For other uses, see
Male (disambiguation).
This article may require
cleanup to meet Wikipedia's
quality standards. (Consider using
more specific cleanup instructions.) Please help
improve this article if you can. The
talk page may contain suggestions. (December 2008)
The shield and spear of the Roman god
Mars, which is also the
alchemical symbol for iron, represents the male sex.
Male (?) refers to the
biological sex of an
organism, or part of an organism, which produces small mobile
gametes, called
spermatozoa. Each spermatozoon can fuse with a larger
female gamete or
ovum, in the process of
fertilization. A male cannot reproduce
sexually without access to at least one ovum from a female, but some organisms can reproduce both sexually and asexually.
Not all species share a common
sex-determination system. In most animals, sex is determined
genetically, but in some species it can be determined due to social, environmental or other factors. The sex of humans is determined genetically.
The existence of two sexes seems to have been selected independently across different
evolutionary lineages (see
Convergent Evolution). The repeated pattern ...
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