Definition
'Gambusia affinis' is a specific species of mosquitofish, known for its effectiveness in controlling mosquito larvae. It belongs to the genus Gambusia, within the family Poeciliidae. Native to North America, this fish has been introduced to various parts of the world for mosquito control. They are small in size and can tolerate a wide range of environmental conditions. While beneficial in reducing mosquito populations, their introduction can sometimes harm native species. Think of them as a specialized tool for pest control in aquatic ecosystems.