And for the past three decades, animal testing has become an intense public controversy. ... For centuries this practice continued as scientists continued to gain more knowledge about the biology of the animal. ... Since then, animal testing has been used regularly. It is estimated that tens of millions of animals are tested annually. ... Those who feel that animal testing is ethical argue that they are not testing on animals to merely hurt them but to gain the best understanding possible of the diseases they are studying and the cures for them. ...

• Word Count: 1147
• Approx Pages: 5
• Grade Level: High School