Well it depends. I really don't mind animal testing if it means we can find an issue with a something medical before we actually test it on humans. However, as silly as it sounds, humane treatment of animals should be something we praise doing not disregard. Considering we have pathos (Greek term for recognition of universal suffering) for humans I don't see why we can have the same views towards that of animals as well. Still don't like the idea of boiling crawfish alive down here.
As long as what we are doing is to serve a great cause and use for that of the human population (like we do with food from animals) then it is ok. But if we are doing it in cruel ways and using it for "silly purposes" then that is unacceptable.
However, I'd also like to throw out there, that for all these things we are taking the routes we are comfortable with scientifically rather than trying to search for a better and potentially easier route as well. We think that if we don't do this we will have to go to another extreme but that also tries to exhaust all options (false dichotomy) when obviously there could be other options in making strides for medical advancement.
