After Antarctica, Alberta is Earth's largest rat-free zone, kept that way daily (worksinprogress.co)
To prove the new warfarin bait was safe, a pest officer sat in front of farmers and ate rat poison treated oats while explaining the program. It worked: Alberta caught the rats at the border before they could breed.
The catch the thread surfaced: 'rat-free' is a verb, not a state. Seven municipalities still inspect thousands of buildings a year, and one Boise resident watched his own city choose the opposite path — 'good luck everyone.'
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