"Gene mutations are overrated"
"Would pig people taste better than normal pigs"
"I don't think the world is going to end in the next three hundred years"
Valid points all, but what is sorely missing here is a video game. Spore may be part of this, but that's not exactly what I'm talking about. Spore needs to add in the ability (in an expansion, it'll take long enough to be released in current concept) to splice the genes of one animal with those of another. I think this would be a great gameplay dynamic.
Or else it could be a whole game, probably for the DS. You can take over the world but have to create your own army. You can create horses crossed with dogs that pig people ride upon. You get the biology part, which could be mucho fun, and then also get the stratgy part. You could even fight your bizarre creation with someone else's. Other games do it, but they have set systems of character building. This would be more freeform. I'm excited already!