Of Men & Mice - Defining Humanity, Experimentation, Chimeras, & Blurring the Lines

Where do we draw the line between human experimentation, & experimentation on animals whose intelligence & sentience grows closer to our own. Again, it's prudent to reflect on the ethical implications & the fact that the boundaries between what we do to others, & behind what we are willing to do to ourselves, tend to blur - much as any inherent distinctions we may perceive.