North Andover resident Diane Sullivan, a professor at the Massachusetts School of Law in Andover, with her two dogs Winnie (left) and Whitey. Sullivan is a fervent animal rights activist and directs the school's animal law program. Sullivan recently put together a book, "Please, Can we Keep the Donkey?," a collection of animal rescue stories from students and staff at the school. The book will be released on April 12, coinciding with an animal rights symposium at the school. Photo by Handout/Town Crossings Tuesday, April 01, 2008 Handout / Courtesy photo