Parthenogensis (clonal reproduction of females) is pretty unusual. Corbicula fluminea is in an even smaller club: it is one of only a few species across the entire tree of life known to use androgenesis! They're hermaphrodite and reproduce asexually, but only the paternal genome is passed on, while the maternal genome is literally discarded out of the cell nucleus! This clonal reproduction has enabled it to become a notorious invasive species: where one hitches a ride, there can quickly be a LOT more in only a couple years! #clamFacts

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