In 2010, Minnesota used more cats for testing than any other state (2,703), New Jersey used the most dogs (6,077), and Massachusetts used the most primates (7,458).
There is no evidence that animal experiments were essential in making major medical advances, and if enough money and resources were devoted to animal-free alternatives, other solutions would be found.
The real-life applications for some of the tested substances are as trivial as an “improved” laundry detergent, new eye shadow, or copycat drugs to replace a profitable pharmaceutical