The movement is no longer viewed as hovering on the fringe.[20] In the 1980s and 1990s, it was joined by a wide variety of academics and professionals, including lawyers, physicians, psychologists, veterinarians, and former vivisectionists,[2] and is now a common subject of study in philosophy departments in Europe and North America.[20] Animal law courses are taught in 92 out of 180 law schools in the U.S.,[21] and the movement has gained the support of senior legal scholars, including Alan Dershowitz[22] and Laurence Tribe of Harvard Law School.[23] Chapters of animal rights law have been created in several state bar associations, and resolutions related to animal rights are regularly proposed within the American Bar Association.[24]