In 2021, Australian scientists sent a robot largemouth bass after invasive mosquitofish for 15 minutes weekly; after 6 weeks, the fish had depleted energy reserves and showed changes linked to survival and reproduction

In a groundbreaking study, scientists have engineered a robotic fish that acts like a predator to address the growing problem of invasive mosquitofish. This unique strategy leverages psychological tactics to create a stressful environment that impacts their survival and reproductive capabilities. Notably, the robot targets mosquitofish only when native tadpoles are present. Upcoming trials in Australia promise to reveal how fear can be a powerful tool in controlling invasive species.
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