One of Canada’s worst invasive species may have arrived naturally - Yahoo News Canada

Every year, Canada grants citizenship to hundreds of thousands of immigrants. Before most adult applicants can take the oath, they must first pass a test based on a government booklet: Discover Canada. For many newcomers, it is one of the few official accounts of the country they will ever read. This citizenship study guide, which largely leaves out settler colonialism, the Indian Act and the ongoing legacy of residential schools, is nearly 17 years old. Ottawa has been promising to replace it for the last decade.