Bedford's flatworm
![Picture](/uploads/1/9/3/5/19350031/313482608.png?332)
Penis fencing
- All Bedford's flatworms are hermaphroditic
- The two hermaphrodites will engage in penis fencing
- The two individuals attempt to stab each other with their penises to inject their sperm
- The loser has the burdensome job of being the mother while the father simply walks away unscathed