Although most people are extremely against animal testing, there are many scientists who will back up why it is important to test animals while doing research. Mice have been used for animal testing for over many decades. This is because according to Understanding Animal Research, we share 95% of our genetic makeup with mice. However, during an experiment Fleming discovered penicillin without any assistance from an animal, proving that scientists were able to find it without the use of a mouse.
Another reason that people believe that we need to test on animals is because if not animals then we would have to test new drugs on people. However, we are constantly testing out new drugs on people. This is because testing on animals is unreliable. According to the FDA (Food and Drug Administration) “92 percent of all drugs that are shown to be safe and effective in animal tests fail in human trials because they don’t work or are dangerous.” This is because even the small amount of drugs that are approved for humans, will automatically have a different effect on the human given the obvious fact that humans have a completely different genetic makeup than a mouse for example. Every human is going to react to the medicine differently in comparison to an animal. This is because in labs, animals are often under high stress because they are constantly being tested on and being mistreated while not being tested.
This brings people to another concern of if not animals or humans, then what? Scientists have come up a solution to this issue, according to PETA, scientists have found “advanced microchips that use real human cells and tissues to construct fully functioning postage stamp–size organs allow researchers to study diseases and also develop and test new drugs to treat them. Progressive scientists have used human brain cells to develop a model ‘microbrain,’ which can be used to study tumors, as well as artificial skin and bone marrow.” This is not only less expensive but is also less harmful to humans and animals.