Invasive species—ranging from plants and animals to insects—are a growing global threat, causing an estimated $400 billion in economic damage each year. Beyond the financial toll, they wreak havoc on native ecosystems, contributing to the decline of biodiversity and widespread agricultural losses. To better understand which invasive species have entered Slovakia, the extent of the damage they’ve caused, and what measures can be taken to prevent their spread, RSI spoke with two experts from the Slovak Academy of Sciences: botanist Barbora Šingliarová and entomologist Marek Semmelbauer.