Last Updated：2025/12/02
A mating behaviour in many species of flatworm, such as Pseudobiceros hancockanus, in which each creature attempts to pierce the other's epidermis with an extendable stylet and thus inseminate it.
音声機能が動作しない場合はこちらをご確認ください
See correct answer
penis fencing
Edit Histories（0）
Source Word
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
