Do you think the benefits of science outweigh the risks?
I think that the benefits do put weigh the risks, because by using animals you can test what you need to without hurting / killing the person. By hurting / killing only like 100 or so animals you could be saving thousands of peoples lives.
Digging up dead bodies is not that safe because it is a precious object and you could break it. You could be hurting / damaging someone's parents or grandparents. You should always have permission from the other family members.