Last Updated：2025/12/02
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In Pseudobiceros hancockanus, penis fencing is a mating behavior in which each flatworm attempts to pierce the other's epidermis with an extendable stylet to inseminate it.
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In Pseudobiceros hancockanus, penis fencing is a mating behavior in which each flatworm attempts to pierce the other's epidermis with an extendable stylet to inseminate it.
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Related words
penis fencing
Noun
uncountable
Japanese Meaning
平板動物（特にPseudobiceros hancockanusなど）に見られる交尾行動の一種で、各個体が互いの皮膚に伸縮可能な刺状器官を突き刺し、相手に精子を注入しようとする行動
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