Testimonies from experts on the unreliabilities of animal experimentation: 

Toxicity tests of pharmaceuticals in rodents only predict human toxicity 43% of the time

-H. Olson et al., “Concordance of the Toxicity of Pharmaceuticals in Humans and in Animals,” Regulatory Toxicology and Pharmacology 32, no. 1 (2000): 56-67


“Currently, nine out of ten experimental drugs fail in clinical studies because we cannot accurately predict how they will behave in people based on laboratory and animal studies,”

 -Mike Leavitt, Health and Human Services Secretary


Info about the unreliability of animal experiments



The Unreliability of Animal Experimentation: In Their Own Words (AR 2015)