Giant Roundworm

Ascaris lumbricoides

Some nematodes (round worms) exhibit androdioecy, a reproductive system characterized by the coexistence of males and hermaphrodites. Androdioecy is rare in comparison to the other major reproductive systems. In animals, androdioecy has been considered an important stepping stone in the transition from dioecy (separate males and females) to hermaphroditism, and vice versa. 

Story contribution:

Oron Catts and Ionat Zurr
Tissue Culture & Art Project
SymbioticA, The Centre for Excellence in Biological Arts
School of Human Sciences + School of Design
The University of Western Australia