How do introduced species cause problems for biodiversity? What makes a species invasive? When humans introduce non-native species to a new environment, it can have disastrous impacts on native species and the entire ecosystem. [9:55]

An interview with Angela Cano, a botanist, on the topic of introduced species, both plant and animal. Discusses reasons for them being introduced and how these introductions can go wrong. A transcript of the conversation is provided. [6:30]