The Problem: There are no laws protecting testing animals from physical and psychological pain once the testing had been approved by in-house committees. The laws about animal wellness doesn’t cover 95% of testing animals, including rabbits, mice, birds, etc. Animals feel pain in many of the same ways that humans do; in fact, their reactions to pain are virtually identical (both humans and animals scream, for example). Two of the most commonly used toxicity tests are the Draize test and the LD50 test, both of which are infamous for the intense pain and suffering they inflect upon experimental animals. In the Draize test the substance or product being tested is placed in the eyes of an animal (generally a rabbit is used for this test); then the animal is monitored for damage to the cornea and other tissues in and near the eye. This test is intensely painful for the animal, and blindness, scarring, and death are generally the end results. The LD50 test is used to test the dosage of a substance that is necessary to cause death in fifty percent of the animal subjects within a certain amount of time. To perform this test, the researchers hook the animals up to tubes that pump huge amounts of the test product into their stomachs until they die. This test is extremely painful to the animals because death can take days or even weeks. 

Reason: Animals are not objects for humans to test and experiment on. They are creatures that have emotion and deserved to be cared for and loved just as much as you and me. 
How can we call ourselves human and then do the more inhumane thing, causing pain and suffering to another creature for our own benefit. Animals have a basic moral right to respectful treatment. This inherent value is not respected when animals are reduced to being mere tools in a scientific experiment. 

Solution: We need people to advocate for animals and their rights by supporting labs that perform in vitro. This provides humans with the same advancements in medicine without the exploitation of animal lives. By supporting these labs we can begin validating and performing non-animal tests in our laboratories.