Hi, r/zoophilia! Yes, I'm a lurker who created a throwaway account. Yes, I'm attracted to animals to some extent (German Shepherds, especially black German shepherds fans self), but I consider myself mostly heterosexual for humans. After following posts for a year, I'm shocked to discover that I can't keep up a decent argument of why zoophilia, as defined by this community, should be wrong. Good for you!
One question has been driving me nuts.
If it was possible for humans and other species to procreate, would it be ethical to mate and create offspring? It usually only gets talked about in sexual fantasies, but I am fascinated by the thought of how people would react. If a new intelligent species started emerging, a lot of assumptions about society, religion, and the nature of humanity and the soul would be called into question.
There's a lot unsaid in your hypothetical, so for the sake of argument, I'll assume that a new technology is introduced which allows interspecies in vitro fertilization, in such a way that the offspring has an average of human and nonhuman traits to the extent that is medically viable.
The creation of such a child would, in my view, be immoral, but not for its philosophical implications. Such a child would be mentally retarded (compared to average humans), have speech impediments and digestive problems, and would likely require lots of support of many different kinds. Add to that its likely social isolation and inability to relate properly with either parent species, and you have a recipe for psychosis and depression. If this could be done more carefully, with better selection of parent traits, it might turn out fine eventually. But realistically, I can't see this going well.
True, I should have fleshed it out more. In that case, yeah, creating a life that's almost certainly going to be stunted would be monstrous.
If an invitro fertilization could result in purely one species or the other, that problem is removed, but the science would be much more difficult, between fetus size, body heat, etc.
It's not at all impossible though.
The best you could hope for, with good results and roughly modern technology, is the following. Keep in mind that this still is subject to all the ethical issues associated with designer babies, but worse, because people don't particularly like Moreaus. At least you won't be firmly in the "holy shit you are a monster" category.
Your baby will need two fathers or two mothers: two human parents and one non-human parent if you want your baby to be (mostly) human, or two non-human parents and one human parent if you want your baby to be (mostly) non-human.
You take a few choice genes from the odd species out: genes that are both roughly homologous between the two species involved and capable of yielding normal function when the offspring is heterozygous for a functional allele (just in case). For horses and humans that might be something like the gene coding for GBE1, which was found to be very homologous between the two species and capable of working with only one functional copy in the genome. It's not a "sexy" protein, and it won't confer any new traits to the offspring, but that's not the point.
Then you snip those genes out of your own gametes using CRISPR and purify them with a whole bunch of other molecular bio techniques. Then you get some gametes from your surrogate father/mother of another species, find their homologous genes, edit those out, and insert your own in their place. This is complicated and easy to fuck up. It also requires both a large expenditure of time and some fancy equipment to get right, not to mention a good grasp of the fundamentals of genetics and molecular bio.
Let's say you want a part-human horse kid. You then take the second-father stallion spermatozoon that you edited and IVF your marefriend's harvested egg with it. After waiting a few days, you use standard IVF techniques to get the egg back in the mare, and then everything is done.
Assuming you did everything right, she will have a totally functional baby who is mostly horse but a small percentage you, whilst appearing totally normal like a foal should, and not dying in the womb like if you were to make huge edits to the genome. It's also totally stealthy barring a complete, on-point, detailed genetic analysis of your child. Your genes will also get passed down through them just as if they were your child for real.
People might label you as insane if they ever found out, especially if you have a human kid (and they themselves would probably hate you forever for it), and I would never encourage doing something like this, but it's not impossible even with current technology.
Food for thought.
Wow, that's way more detailed than I expected this conversation to go.
I can't help but think that if it's in the realm of possibility, someone's going to try it, sooner or later. It seems to be human nature that we can't leave a hot stove alone-- I'm sure that's how many members of this community got into zoophilia in the first place. It's the impulse that led me to discover this subreddit in the first place.
A child berween a Quadrupeds and a biped would have soo many issues I highly daught it could function properly, Most lickly have a very deformed skeletal structure.
Amon other problems
The offspring would be too much of a dog for human town, and too much of a human for dog town.
Sad, but true. There could be more hatred for the little guys than Hitler had for the Jews, or KKK members for African-Americans.
An interesting hypothetical.
What would their life expectancy be? 10? 82? 46?
What would their intellect be? Intelligence isn't as simple as an IQ score. At the age of 2, dogs outsmart humans. On social intelligence, they keep outsmarting us until we're 14.
What would they look like? Half-bald furries?
How would they talk? Lips, tongue and vocal chords are all different.
Interesting to think about. I have no answers though.
I mostly have to agree with Kynophile and the others that the likely result would be too stunted to live a happy life.
If it DID work, though. If there WAS a new half-human, half-something else species that was viable and able to reproduce, we'd be looking at a new race of man. They could become the dominant species eventually, a bit like Neanderthals outbreeding the previous species of man-creature.