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It is an ongoing issue that the animals that are being tested have been known to suffer. Vivisection is one of the worst forms of institutionalized animal abuse in our society, and it is a sanctioned and legal abuse. Within laboratory walls, what can be done to animals has no limit except those imposed by a committee selected by the facility itself. Imagine spending your entire life as a hospital patient or prisoner, and this will only begin to approximate the life of an animal in a laboratory. What happens to you can range from uncomfortable to agonizing to deadly—and you are helpless to defend yourself. Animals in labs live stressful, monotonous, and unnatural lives of daily confinement and deprivation. The only changes in their lives may come from being called into a research or testing protocol—which may include an invasive experiment, or a procedure whose endpoint is death.Every year in the U.S., over 25 million animals are used in biomedical experimentation, product and cosmetic testing, and science education. This includes—dogs, cats, ferrets, rabbits, pigs, sheep, monkeys, chimpanzees, and more. However, the majority of animals in labs (over 90 percent) are rats, mice, and birds. Some estimates place them in the tens to hundreds of millions. In research and testing, animals are subjected to experiments that can include everything from testing new drugs to infecting with diseases, poisoning for toxicity testing, burning skin, causing brain damage, implanting electrodes into the brain, maiming, blinding, and other painful and invasive procedures. It can include protocols that cause severe suffering, such as long-term social isolation, electric shocks, withholding of food and water, or repeated breeding and separating of infants from mothers. In toxicity testing, animals used in chronic toxicity and carcinogenicity studies receive the test substance daily, seven days a week, for up to two years with no recovery periods. Many, if not most, animals die