Today—because experiments on animals are cruel, expensive, and generally inapplicable to humans—the world’s most forward-thinking scientists have moved on to develop and use methods for studying diseases and testing products that replace animals and are actually relevant to human health. These modern methods include sophisticated tests using human cells and tissues (also known as in vitro methods), advanced computer-modeling techniques (often referred to as in silico models), and studies with human volunteers.

There are many non-animal test methods that can be used in place of tests on animals. Not only are these non-animal tests more humane, they also have the potential to be cheaper, faster, and more relevant to humans.

All animal’s bodies do not react the same. This can cause very misleading results. A mouse may react positively to a treatment while a bird may have a negative reaction. These types of treatments are often put on the back burner.

Despite what proponents insist, cell cultures in a petri dish, or in vitro (in glass) testing, are not exactly useless or insufficient. They can even produce results that are more relevant than animal experimentation.

Some medicines and products that are harmful to animals are actually valuable to humans.

The anatomic, metabolic, and cellular differences between animals and people make animals poor models for human beings.

95% of animals used in experiments are not protected by the federal Animal Welfare Act (AWA), which excludes birds, rats and mice bred for research, and cold-blooded animals such as reptiles and most fish.

It is hard to quantify how many missed opportunities there may have been because of misleading animal experiments.

there is more than 90 percent chance that the drug that tested safe and effective in animals will be ineffective or unsafe in you.

Studies published in prestigious medical journals have shown time and again that animal experimentation wastes lives—both animal and human—and precious resources by trying to infect animals with diseases that they would never normally contract.