How many animals are involved?Each year, an estimated 27 million animals in the United States are used in research, testing, and education. About half (14 million estimated) are used for testing, including drugs. Why "estimated"? Data are incomplete on numbers of animals used in each of the three areas. Further, the Animal Welfare Act requires facilities to report the usage of only primates, dogs, cats, guinea pigs, rabbits, and certain other species. Since rats, mice, and …
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