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A male organism cannot [[sexual reproduction|reproduce sexually]] without access to at least one ovum from a female, but some organisms can reproduce both sexually and [[Asexual reproduction|asexually]].<ref>{{Cite journal|last=Lively|first=Curtis M.|date=2010-03-01|title=A Review of Red Queen Models for the Persistence of Obligate Sexual Reproduction|url=https://academic.oup.com/jhered/article/101/suppl_1/S13/757712|journal=Journal of Heredity|language=en|volume=101|issue=suppl_1|pages=S13–S20|doi=10.1093/jhered/esq010|pmid=20421322|issn=0022-1503|doi-access=free}}</ref> Most male [[mammal]]s, including male humans, have a [[Y chromosome]],<ref>{{Cite web|last=Reference|first=Genetics Home|title=Y chromosome|url=https://ghr.nlm.nih.gov/chromosome/Y|access-date=2020-07-22|website=Genetics Home Reference|language=en}}</ref><ref>{{Cite web|title=Y Chromosome|url=https://www.genome.gov/genetics-glossary/Y-Chromosome|access-date=2020-09-07|website=Genome.gov|language=en}}</ref> which codes for the production of larger amounts of [[testosterone]] to develop [[male reproductive organs]].
 
In humans, the word ''male'' can also be used to refer to [[gender]], in the social sense of [[gender role]] or [[gender identity]].<ref>{{Cite web |title=Definition of MALE |url=https://www.merriam-webster.com/dictionary/male |access-date=2023-03-14 |website=www.merriam-webster.com |language=en}}</ref><ref>{{Cite web |title=male |url=https://dictionary.cambridge.org/us/dictionary/english/male |website=Cambridge Dictionary}}</ref>
 
== Overview ==