The introduction of commensal rat (Rattus) species into Ontario is hypothesized to have followed the intensification of European settlement in the early to mid-19th century. However, the exact date of rat translocation is not precisely known. This study tracks the introduction and establishment of Rattus species across Lake Ontario, using archival newspaper accounts, and addresses … Continue reading Tracing the Introduction of Rats Across 19th-Century Lake Ontario Settlements Using Archival Newspapers