PurringPurring in the Domestic Cat Biology 342 Fall 2011 By Cara Holton & Jackie Pires An Introduction to Purring Felis silvestris catus, the domestic cat, can be found in a third of American households, and there are more than 600 million domestic cats worldwide [1]. Perhaps the most famous author to ever describe the behavior of the domestic cat was Charles Darwin, who wrote in The Expression of the Em
