ANIMAL TESTING CONS

The principal disadvantage of animal testing is that  a significant number of animals are harmed or die as a result of experiments and testing. 

* Mice and Rats:

More than 100 million mice and rats are killed in U.S. laboratories every year. They are abused in everything from toxicology tests (in which they are slowly poisoned to death) to painful burn experiments to psychological experiments that induce terror, anxiety, depression, and helplessness.
Mice and rats are mammals with nervous systems similar to our own. It's not a secret that they feel pain, fear, loneliness, and joy just as we do!


* Rabbits:
Despite the availability of more modern, humane, and effectivealternatives, rabbits are still tormented in the notorious Draize eye irritancy test, in which cosmetics, dishwashing liquid, drain cleaner, and other substances are dripped into the animals' eyes, often causing redness, swelling, discharge, ulceration, hemorrhaging, cloudiness, or blindness. The rabbits are killed after the experiment is over.


* Primates:

Every year in the U.S., more than 125,000 primates are imprisoned in laboratories, where they are abused and killed in invasive, painful, and terrifying experiments. While it is well known that nonhuman primates are sensitive, intelligent beings who share many important biological and psychological characteristics with humans, these very attributes, unfortunately, make them prime targets for experimenters, who treat them as if they were disposable pieces of laboratory equipment.

 * Dogs:
Dogs' status as "man's best friend" offers them no protection from being locked in lonely cages and forced to endure excruciating experiments. Nearly 75,000 dogs, including thousands of homeless animals from shelters, are tormented in U.S. laboratories every year. Dogs are a favored species in toxicology studies. In these studies, large doses of a test substance (a pharmaceutical, industrial chemical, pesticide, or household product) are injected into their bodies, slowly
poisoning them.