Generate text that refutes this claim: Animal research is only used when it’s needed  EU member states and the US have laws to stop animals being used for research if there is any alternative. The 3Rs principles are commonly used. Animal testing is being Refined for better results and less suffering, Replaced, and Reduced in terms of the number of animals used. This means that less animals have to suffer, and the research is better.
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Not every country has laws like the EU or the US. In countries with low welfare standards animal testing is a more attractive option. Animal researchers tend to only do animal research so don’t know about the alternatives. As a result they will use animal testing unnecessarily not as just a last resort.