In 1905, Hawaii introduced mosquitofish to fight mosquitoes. More than 100 years later, the fish is threatening native wildlife

An invasive species, mosquitofish, introduced to Hawaii in 1905 poses a significant threat to the islands' native freshwater ecosystem. These aggressive fish not only prey on native damselflies but also compete with the unique gobies for essential food resources. Rapid reproduction and dietary adaptability exacerbate the situation. Conservation efforts are now aimed at safeguarding fragile habitats while raising awareness of the broader implications of invasive species.