 It is what Dr. Pietro Croce describes as the “new anti-vivisectionist,” a person whose reasoning for disbanding vivisection comes from medical and scientific viewpoints, in that there is an actual danger with using animal tested drugs on humans.As Dr. Croce states, “an experimental model of the human species does not exist.” Meaning simply that one cannot expect results derived from testing on animals biologically different from humans to be truly representative of something beneficial to humans.Mark Twain's sketch “A Dog’s Tale” was used by the Anti-Vivisection Society in its campaign against that practice.