Interesting, John. Hybrids. I think we don't even need aliens for that. We're transplanting pig hearts into humans. And most of us don't even realize that in reality we are only 57% human cells. The rest of our bodies is microbes... So, aliens are not too far off in our thinking. Astrofysicists like Neil deGrasse Tyson talk very openly about it. And I love it. All realities count...