The Amazon molly, Poecillia formosa, is a freshwater fish that is gynogenetic. In order to reproduce, individuals of this all-female species must mate with a male from a closely related species to initiate the development of their offspring. The male's genetic material does not, however, enter the Amazon molly's egg. What costs of sexual reproduction does the Amazon molly potentially experience?

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The Amazon molly, although reproducing through a form of asexual reproduction known as gynogenesis, still requires mating with a male from a closely related species to trigger egg development. This process involves the costs associated with finding a mate and competing with other females for mates, even though the male's genetic material does not contribute to the offspring.

The Amazon Molly, Poecillia Formosa, Is a Freshwater Fish That