MEDICAL RESEARCH for humans: how do you feel about using humans in medical research?

no human or animal should be used fro medical research because it can be harmful to both of them. with them not knowing the affects of the treatment or product it may cause severe burning, itching, or seizure. with so many animals being extinct now because of pollution we don't need to be testing them. I'm not so concerned with humans being tested because that's there problem but animals have no say in whether or not they want  or do not want to do something. humans can communicate with other humans but animals and humans can not. when an animals feels they're in danger or in pain they attack or whine that should tell medical researchers that whatever they put on them or have them is hurting them and could possibly lead to death. i strongly feel that researchers have no right to test on animals and humans.