Interesting ideas @sameer777. Overall, the use of animal experimentation, though controversial, has brought tremendous benefits for humanity! It is very likely that the survival of the human species, will be totally dependent on our ability to rethink the way we are going to produce the huge demand namely for protein... for human consumption, in 2050... with the worldwide increase of population!... egoistic? human centered? too pragmatic?... Indeed! But a fact! Thanks for the insights!