Editing Sex (section)

==== Sequential hermaphroditism ====
[[File:Ocellaris clownfish.JPG|thumb|[[Clownfish]]es are initially male; the largest fish in a group becomes female.]]

Some species can change sex over the course of their lifespan, a phenomenon called [[sequential hermaphroditism]].<ref name="Fusco-2019">{{cite book| vauthors = Fusco G, Minelli A |author-link2=Alessandro Minelli (biologist) |url={{GBurl|id=AKGsDwAAQBAJ|q=sequential+hermaphroditism+in+plants}}|title=The Biology of Reproduction |date=2019|publisher=Cambridge University Press|isbn=978-1-108-49985-9|pages=124|language=en}}</ref> 

[[Teleost|Teleost fishes]] are the only vertebrate [[Lineage (evolution)|lineage]] where sequential hermaphroditism occurs. In [[clownfish]], smaller fish are male, and the dominant and largest fish in a group becomes female; when a dominant female is absent, then her partner changes sex from male to female. In many [[wrasse]]s the opposite is true:  the fish are initially female and become male when they reach a certain size.<ref>{{cite journal|author-link4=Neil Gemmell|vauthors=Todd EV, Liu H, Muncaster S, Gemmell NJ|date=2016|title=Bending Genders: The Biology of Natural Sex Change in Fish|journal=Sexual Development|language=english|volume=10|issue=5–6|pages=223–2241|doi=10.1159/000449297|pmid=27820936|s2cid=41652893|doi-access=free|hdl=10536/DRO/DU:30153787|hdl-access=free}}</ref> 

Sequential hermaphroditism also occurs in plants such as ''[[Arisaema triphyllum]]''.