English: Two flatworms of the genus Pseudobiceros bedfordi about to engage in a sperm battle. They are hermaphroditic and have two penises that are used to inject sperm into the partner. P. bedfordi is exceptional in that it applies sperm onto the partner's skin, rather than injecting it.
Deutsch: Zwei Plattwürmer (Pseudobiceros bedfordi) vor der Begattung. Der doppelte Penis ist bei beiden Individuen gut sichtbar.
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This file, which was originally posted to
Whitfield J: Everything You Always Wanted to Know about Sexes. PLoS Biol 2/6/2004: e183.
doi:10.1371/journal.pbio.0020183.g001,
photo page, was reviewed on 26 November 2022 by
reviewerSanandros, who confirmed that it was available there under the stated license on that date.
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Dvojice ploštěnek Pseudobiceros bedfordi (chování známé jako penis fencing)
{{Information |Description='''Two Individuals of ''Pseudobiceros bedfordi'' About to Have a Sperm Battle.''' Species of the flatworm genus ''Pseudobiceros'' are hermaphroditic and have two penises that are used to inject sperm into the partner. ''P. bedfo
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