The roach populations not only survived the chemical assaults, but ultimately grew stronger. In some cases, they even saw their populations grow.

This story was originally published on CBC News. To read the rest of this news worthy story, please visit https://www.cbc.ca/radio/asithappens/as-it-happens-wednesday-edition-1.5198437/cockroaches-have-become-nearly-impossible-to-kill-with-chemicals-study-finds-1.5198499?cmp=rss.

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