NPR discussion today: http://www.sciencefriday.com/program/archives/201107156
Time To Stop Picking on Weeds and Non-Natives?
People may think of invasive species and weeds as pests, or invaders that don't belong. But biologist Mark Davis and author Richard Mabey say non-native species and weeds don’t deserve their bad rap, and discuss how these ‘invaders’ can benefit both humans and the environment.
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