Geneticist suggests MFAP theory of human evolution


The human species began as the hybrid offspring of a male pig and a female chimpanzee, a leading geneticist has suggested.

The startling claim has been made by Eugene McCarthy, of the University of Georgia, who is also one of the worlds leading authorities on hybridization in animals.

He points out that while humans have many features in common with chimps, we also have a large number of distinguishing characteristics not found in any other primates.

Dr. McCarthy says these divergent characteristics are most likely the result of a hybrid origin at some point far back in human evolutionary history.

What's more, he suggests, there is one animal that has all of the traits which distinguish humans from our primate cousins in the animal kingdom.

'What is this other animal that has all these traits?' he asks rhetorically. 'The answer is Sus scrofa, the ordinary pig.'

Dr. McCarthy elaborates his astonishing hypothesis in an article on, a website he curates. He is at pains to point out that that it is merely a hypothesis, but he presents compelling evidence to support it.

Scientists currently suppose that chimpanzees are humans' closest living evolutionary relatives, a theory amply backed by genetic evidence.

However, as Dr. McCarthy points out, despite this genetic similarity, there are a massive number of divergent anatomical characteristics distinguishing the two species.

These distinguishing characteristics, including hairless skin, a thick layer of subcutaneous fat, light-coloured eyes, protruding noses and heavy eyelashes, to name but a few, are unmistakeably porcine, he suggests.

There are also a number of less obvious but equally inexplicable similarities between humans and pigs in the structure of the skin and organs.

Indeed, pig skin tissues and heart valves can be used in medicine because of their similarity and compatibility with the human body.

Dr. McCarthy says that the original pig-chimp hook up was probably followed by several generations of 'backcrossing', where the offspring of that pairing lived among chimps and mated with them - becoming more like chimps and less like pigs with every new generation.

This also helps to explain the problem of relative infertility in hybrids. Dr. McCarthy points out that the belief that all hybrids are sterile is in fact false, and in many cases hybrid animals are able to breed with mates of the same species of either parent.

After several generations the hybrid strain would have become fertile enough to breed amongst themselves, Dr McCarthy says.

Unsurprisingly, Dr McCarthy's hypothesis has come in for substantial criticism from orthodox evolutionary biologists and their Creationist opponents alike.

"Hybridizing a pig and a chimp is like taking half the dancers from a performance of Swan Lake and the other half from a performance of Giselle and throwing them together on stage to assemble something," explains a ScienceBlogger. "It’s going to be a catastrophe."

Dr. McCarthy's theory also finds opposition from several competing theoreticians:

Elephant f@$%$ a donkey:

Alpaca f@$%$ a pig:

Dog f@$%$ a pig:

So OG, what camp do you fall in?

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likwid site profile image  

12/1/13 9:38 PM by likwid

You are saying its possible that Chimps and Humans just share a common ancestor with Pigs, possibly far up the evolutionary chain?This guy's hypothesis is saying if that was true, Chimps would share more in common with Pigs than they do. Not arguing with you, I have no idea, this guy has probably forgotten more about biology than I will ever know, I just find it really interesting."If we supposed standard theory to be correct, it would seem most peculiar that pigs and humans share features that distinguish human beings from chimpanzees, but that pigs and chimpanzees should not. Conventional theory (which assumes that pigs are equally as far removed from humans as from chimpanzees) says that pigs and chimpanzees would share about as many such traits as would pigs and humans. And yet, I have never been able to identify any such trait--despite assiduous investigation. The actual finding is that traits distinguishing chimpanzees from humans consistently link pigs with humans alone. It will be difficult to account in terms of natural selection for this fact. For each such feature, we will have to come up with a separate ad hoc argument, explaining how the feature has helped both pigs and humans to survive and reproduce. On the other hand, a single, simple assumption (that modern humans, or earlier hominids that gave rise to modern humans, arose from a cross between pig and chimpanzee) will account for all of these features at a single stroke."

Kneeblock site profile image  

12/1/13 9:14 PM by Kneeblock

The theory is nonsense because it's parsing genetic variation using a misunderstanding or deliberate misrepresentation of evolution. That body types are modular, conserving elements of successful breeding in the embryonic stage, is the linchpin of modern evolutionary development theory. That there would be similar organ structures in pigs is no indication that a pig was close in the evolutionary chain, just that somewhere in said chain, both divergences kept those traits. What's more, the genome is not closely enough related. We're about as similar to pigs as we are to mice. That doesn't mean a rat crawled into a great ape's vagina and shot it's load.

Outlaw'd by Lytle site profile image  

12/1/13 8:40 PM by Outlaw'd by Lytle

This actually makes more sense than anything else I've heard.Humans have been caught fucking other animals, makes sense that chimps do (RIP Frog).I consider this a fact.

panic686 site profile image  

12/1/13 6:37 PM by panic686


Raxbot site profile image  

12/1/13 5:51 PM by Raxbot

Kanye-Kim video popping up in this thread has me dying.......

Meohfumado site profile image  

12/1/13 5:48 PM by Meohfumado

I'm willing to entertain the notion that I'm some sort of monkey-pig...but a pig-monkey? I find that thought abhorrent! I say good-day sir!

Res ipsa loquitar site profile image  

12/1/13 5:40 PM by Res ipsa loquitar

" Is there any sense in which his claims contradict theories about genetics? "Yeah. Why our genes match up so closely with chimps. He passes over an entire mound of evidence to propose his hypotheses without explaining said evidence. He can't write that away saying it is too hard to find the genetic link between animals that are separated by 80 million years of evolution. If we met up much later, there would be a link.And more viscerally, I am willing to bet anything humans have been fucking pigs since their domestication. If we were able to hybridize by that giant gap only 2 million years ago, there is no reason to assume we still couldn't produce offspring….Simple experiment. there is no shortage of pigs or willing donors.

youarewhatiswrong site profile image  

12/1/13 5:31 PM by youarewhatiswrong

I think i just figured out what to do about my neighbors.

Tiresias site profile image  

12/1/13 5:14 PM by Tiresias

  I think he felt "compelled to make the leap" because he found the anatomical evidence so striking.  And as a layman, hearing descriptions of the connections between human and porcine anatomy, where such links are missing between humans and primates, makes the theory seem plausible.  Is there any sense in which his claims contradict theories about genetics?   

Synado site profile image  

12/1/13 4:56 PM by Synado

Humans taste like.. Bacon?