Mosquitofish Sexual Dimorphism (IMAGE)

University of California - Santa Cruz

Mosquitofish Sexual Dimorphism

Caption

Female mosquitofish (top row) are larger than males and often display a distended abdomen due to pregnancy (mosquitofish are live-bearing fishes). Males are smaller, thinner and are characterized by an elongated gonopodium.

Credit

David Fryxell

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