View source for Species with three or more sexes

This includes human species (in future or alternate incarnations), humanoid species, and non-humanoid species. Includes species with more than two genders, as well as species which are defined as hermaphroditic; does not include ''single-sex'' species in which one of the currently existing human sexes continues to exist, such as parthenogenetically-reproducing all-female species. 

==Future or mutated humans==
* [[Isaac Asimov]]. [[Foundation and Earth]] (1986) [a hermaphroditic variety of humans; one joins the protagonists]
* Future humans in ''[[Proud Man]]'' by [[Katharine Burdekin]].(1934; 1993) A human from the future visits 1930s England; humans in the future have evolved "beyond" humanity, and beyond humanity's bi-sexed nature; each individual can reproduce on their own, and is whole, containing both male and female attributes. This human contemplates with amazement the various social oddities of modern English society.
* The [[Wraeththu]], future humans; by [[Storm Constantine]]
* The blands, a neuter third sex in [[Carolyn Ives Gilman|Carolyn Ives Gilman's]] [[Halfway Human]]
* The future human Gethenians in [[Ursula K. Le Guin]]'s ''[[The Left Hand of Darkness]]'': Neuter most of the time, but male and female in potential; when they go into ''[[kemmer]]'', a type of genderizing heat, they go into one or the other gender.
* The sai in [[Stephen Leigh|Stephen Leigh's]] [[Dark Water's Embrace]] and [[Speaking Stones]], a third sex that is needed by the other two (male and female) to reproduce on an inhospitable colonized planet
* Future humans in ''[[Shadow Man]]'' by [[Melissa Scott]]. (1995) space travel creates five common genders

==Alien humanoids==
* A hermaphroditic female-ish humanoid species in ''[[Stranded]]'' by [[Camarin Grae]]. ''Stranded'' (1991, Naiad) (3 women from a hermaphroditic species are sent as "disembodied minds" to Earth to stop a villain. They end up identifying as lesbians and fighting a fundamentalist movement led by the villain.)
* The three-way species, including human species, in ''[[Dark Water's Embrace]]'' (1998) and ''[[Speaking Stones]]'' (1999) by [[Stephen Leigh]]. Includes male, female, and "midmale". 

==Non-humanoids==
* [[Chocky]], an alien non-gendered species
* [[William Tenn]]'s short story "The Seven Sexes," featuring an alien race in which all seven sexes must participate to mate.

==Others==
* Duchamp, L. Timmel. "Motherhood, Etc." (1993)
* Joyce, Graham, and Peter F. Hamilton. "Eat Reecebread" (1994)

* [[Oankali]] in [[Octavia Butler]]'s [[Xenogenesis trilogy]]

==See also==
* [[Neuter and androgynous species in SF]]
* [[Species with three or more sexes]]
* [[Single-sexed species]]
* [[Hermaphroditic species in SF]]


[[Category:Fictional species and kinds]]
[[Category:Gender and sex themes]]