Acquisition of dwarf male "harems" by recently settled females of Osedax roseus n. sp. (Siboglinidae; Annelida)

Key Points

• Females of Osedax roseus acquire dwarf male harems for mating purposes, enhancing reproductive success.
• This behavior highlights a unique reproductive strategy among annelid species within the Siboglinidae family.
• Observational analysis identifies the dynamics between settled females and dwarf males in natural environments.
• These findings support the understanding of social structures and reproductive strategies in marine ecosystems.