THROUGHOUT history, animals have played an important role in man's understanding of himself and his environment. A wide variety of animal "models" have made invaluable contributions to the understanding, treatment, and cure of human diseases. The discovery and identification of hormones and vitamins and the testing of most antibiotics and chemicals would have been impossible without such experiments. Humane considerations in the use of experimental animals have been discussed, often with considerable vigor, for more than a century. The place and importance of the experimental animal in medicine today is hotly disputed by the antivivisectionists who question the use of animals at all and the scientific community. The animal rights movement has become increasingly vocal and violent during the past two years with break-ins at research institutions, destruction of property, and the stealing of animals.
Activities by American animal protection groups have increased sharply