Columns/Opinion Why are rats used for tests in laboratories? By The Dominion Post June 15, 2018 - 8:26 pm In almost all the medical research we learn about, we find that it was tested on a lab rat. Why is that? To continue reading, log into your account or explore our subscription options: Sign In Remember Me Forgot Password? Subscribe $1.00/week Digital Only $1.00/week Digital + Sunday $3.00 Digital + Daily View All Plans »