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Review title: A much needed account of animals in research!
Product review: Adams is a fantastic author with great insight into non-human animals.To understand what he has done here, you must understand what role animals play in scientific research. Chemicals come with material safety data sheets, or MSDSs which include toxicity information. These toxicity measures,LD50(Lethal dose,50%) and TLV(threshold limit value)are derived from exposing animals to injections of the chemical or by respirating it until a specified percentage of the animals die. LD50 means that at this concentration of chemical, 50% of the animals die. TLV is the concentration of gas or vapor at which breathing that chemical causes death.So for every chemical introduced, a population of animals must die. Animal testing is a prerequisite for commercial manufacture of a chemical under the Toxic Substances Control Act of the 1970s overseen by EPA.And similar research is required by the FDA in introducing new drugs for medical use.
