Three anemone clownfish swimming amongst anemones


Hermaphrodites have both male and female sex organs, either throughout their lives (homgamy) or that develop and mature at different points in their life cycle (dichogamy). Most dichogamous species, including many flowers and fish, change sex only once in their development. These organism still need another individual at the opposite stage for fertilisation. Homgamous species may be capable of self-fertilisation, but generally two individuals exchange sex cells and both are fertilised.

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BBC News about Hermaphroditic