The rat is a valuable animal model of human disease. Humans and rats share many common genetic features and by examining the physiology, neurology, neurophysiology and the resulting behaviours such as the response to stress, of a rat, scientists can gain valuable insights into how humans function. The rat is one of the primary models for studies of human reproduction. Which is why the findings of a new peer reviewed study on the effects of a drug induced medical abortion on rats is so fascinating.