This page gives a good summary as to why mice are used in research: http://research.jax.org/mousegenetics/advantages/advantages-of-mouse.html http://research.j

This page gives a good summary as to why mice are used in research: http://research.jax.org/mousegenetics/advantages/advantages-of-mouse.html http://research.jax.org/mousegenetics/advantages/advantages-... Humans have far more variation in environment, they think relatively independently (making sticking to a prescribed regimen less likely), and they are far more complex organisms in general.