1. The Cruelty of Animal Testing
... dose is 50(LD50) tests were developed in 1927(PETA, tests). The LD50 testing period continues until at least 50 percent of the animals die, usually 2-4 weeks. Like Eye Irritancy tests, Lethal Dose tests are unreliable at best. Rodger D. Curren of Microbiological Associates says, "Researchers looking ... to some companies. Since these tests allow manufacturers to put virtually any product on the market. Enormous physiological variants exist among rats, rabbits, dogs, pigs, and humans(PETA, tests). The drugs thalidomide, Zomax, and DES were all tested on animals and judged safe, but had de...
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