Original sentence: The history of animal testing goes back to the writings of the Greeks in the third and fourth centuries BCE, with Aristotle (384-322 BCE) and Erasistratus (304-258 BCE) among the first to perform experiments on living animals
Edited sentence: ) among the first to perform experiments on living animals.) and Erasistratus (304-258 B., with Aristotle (384-322 B.Drugs considered "safe" after animal tests have been found to actually harm humans (Vioxx, Thalidomide etc.Simple examples of the differences between species include the following:  1) aspirin kills cats; 2) chocolate, onions, grapes and raisins kill dogs; 3) avocado and fumes from non-stick coatings (when overheated) kill birds; and 4) goats can eat strychnine.The history of animal testing goes back to the writings of the Greeks in the third and fourth centuries B.The premise is that it's impossible to extrapolate data from studying one species and apply it to another.Those in favor of animal tests have still not been able to adequately address these basic differences between species and why, in light of these basic differences, the public should trust any animal research data.Those who oppose animal research and testing point out the following facts: harm has been caused to humans when relying on animal testing