Susan McCarthy, who goes by “Sumac” on SorryWatch.com, is the coauthor (with Jeffrey Moussaieff Masson) of the international bestseller When Elephants Weep: The Emotional Lives of Animals, which has been translated into twenty-one languages. She’s also the author of Becoming a Tiger: How Baby Animals Learn to Live in the Wild. Publications she’s written for include Parade, The Guardian, WIRED, Smithsonian magazine, Outside, and Salon. Her work has been anthologized in The Best American Science Writing and in Mirth of a Nation: The Best Contemporary Humor. She lives in San Francisco.