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Without animal research, chemotherapy wouldn’t exist—and couldn’t save the 70 percent of children who now survive acute lymphocytic leukemia.
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 Even the most sophisticated technology cannot mimic the complicated interactions occurring among cells, tissues, and organs in a living body. Laboratory animals are essential in many areas of biomedical research because they have organs and body systems similar to humans and other animals and thus are often susceptible to the same diseases we are. The data derived from research on these animals can thus be applied to humans and other animals. |
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 Quality research would be impossible if the animals involved in the study were not well cared for. In order to ensure the welfare of animals used in research, there are strict rules and guidelines for the care of each species of laboratory animal. Researchers are only allowed to conduct studies involving animals if they can prove that no alternative would produce accurate results, and must follow established guidelines for the care, housing, and enrichment of the animals in their care. |
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 | Why are increasing numbers of animals sacrificed for research? |  | Although the number of mice used in medical research has increased in recent years because of their use in genetic research for diseases, the number of most kinds of animals used in research has actually decreased by 20%-50% in the past 20-25 years, due in part to the replacement of some animals with non-animal testing and the improvement of research techniques. |
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Importance
