It is the dissection of an animal when still alive. As advocates of animal rights do not support research where experiments are carried out (with monkeys, puppies and other animals) that take place unnecessary vivisection. While vivisection is restricted to research on cancer and other malignancies. Scientists and researchers have developed ways of torturing animals in endless experiments. They use them to test substances such as chemicals and pesticides kill weeds or new ingredients for cleaning fluids, paints and even pet food.