The invasive snakehead fish, which is native to Africa, Asia, Indonesia, and Malaysia, has been found in nine states in the United States and has notably developed a reproducing population in South Florida, Maryland, and Hawaii. This case study discusses the environmental impact and policies surrounding the snakehead fish population in the United States’ waters, as well as three other fishes (smallmouth bass, largemouth bass, and trout) that are native to some bodies of water in the United States, but non-native to others. This case study will examine the paradox that exists when the support of anglers and/or other important stakeholders in wildlife management does not match the potential a species has to damage a native habitat. Readers should be able to think critically about how people have come to define what is seemingly good for the environment based on personal human interest rather than environmental interest. They should also think about how easily the environment can be changed, even permanently, due to small cases of invasive species spreading rapidly from human practices.