Why are animals used for repetitive experiments?
The number of animals used in research has actually decreased by 40 percent since 1968. This is due, in part, to an increase in non-animal testing and the improvement of laboratory animal medicine. Some experiments need to be repeated in order to discover errors and to confirm that the first research results are valid and correct. Experiments must also be repeated to check changes in weight, temperature and dosages. Because of competition for research funding, only the highest priority projects are undertaken. For example, NIH is able to fund only about 25 percent of all scientific proposals it finds worthy.
