genus
Pseudobiceros
Pseudobiceros
Field notes
Pseudobiceros is a genus of flatworms. Like all flatworms, Pseudobiceros are hermaphrodites. This particular genus engages in penis fencing. When the "winner" touches its penis to the "skin" of the other, insemination occurs, and the "loser" has to bear the burden of motherhood.
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Range
Greener is more native, amber more introduced; paler is less certain. How this was decided