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Writings of civilizations indicate animal testing, to test medical procedures.
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like the last one but they used them to study how the human body works as well.
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He used animals to prove his theory that living beings needed air to live.
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people start to oppose animal testing and don't want it happening. Britain passed the cruelty to animals act.
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Frederick Banting used dogs, and later cows, to experiment with the pancreas and insulin to develop a treatment for diabetes.
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Using guinea pigs, Corwin Hinshaw found that antibodies found in the soil could help cure tuberculosis
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Jonas Salk's experiments and the development of the polio vaccine, polio dropped dramatically
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Doctors and scientists used dogs to attempt the replacing of a heart valve.
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The treatments found that the animals were much calmer while taking the salts, and by 1970 the treatments revolutionized the way people with depression lived.
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PETA, they are the largest animal advocacy group in the world. While animals may be needed for certain medical and scientific advancements, PETA works to protect animals to the best of their abilities.