In a study to test the effects of adding ingredients such as honey, sugar, molasses, plum juice, lime oil, chocolate, cocoa, and coffee extract to cigarettes, experimenters with Philip Morris stuffed thousands of rats into tiny canisters and pumped tobacco smoke directly into their noses six hours a day for 90 consecutive days. The rats were then killed and dissected in order to examine the harm caused to their bodies.
To test the effects of using high-fructose corn syrup to flavor cigarettes, experimenters at R.J. Reynolds painted cigarette tar on the skin of more than 1,000 mice and rats and then forced them to breathe cigarette smoke. Many of the mice who had tar spread on their skin died during the study. Other mice developed skin tumors or their skin peeled off. All the surviving animals were killed and dissected.
Different animals have different reactions to toxins, and animals in laboratories aren't exposed to cigarette smoke in the same way as human smokers.
The link between tobacco and lung cancer in humans was hidden for years because experiments on animals did not show this relationship.
Manufacturers can effectively use in vitro (non-animal) technology, human-based research methods, and the existing body of knowledge from human epidemiological and clinical studies about the health concerns associated with smoking.
None of these cruel animal experiments would even be legal if conducted in Germany, Belgium, the U.K., or several other countries, where tobacco product and ingredient tests on animals have been banned.
Philip Morris' German laboratories have even developed in vitro methods that use human lung tissue to test their products, but the company's U.S. counterpart still continues to conduct cruel and less reliable animal tests.
Mice and rats are the most commonly used species in these tests, and they are not given any protection under the Animal Welfare Act, the only federal law that governs the use of animals in laboratories. The number of mice and rats used in tests does not have to be reported, and no law prevents any test on them, no matter how cruel, repetitive, or unnecessary.
Mice and rats are highly intelligent mammals who feel pain, fear, loneliness, and joy, just as we do. They become emotionally attached to each other, love their families, and easily bond with human guardians.