This was linked from New Scientist. It looks plausible.
Quote:
First of all, the notion is set forward strictly as a hypothesis. No claim whatever is made that it is actually a fact that humans somehow arose through hybridization of pigs with chimpanzees. In contrast, proponents of the idea that humans are closely related to apes (and not to pigs) often speak as if their case has been proved beyond doubt. But, of course, it has not. The wide acceptance of this idea may actually be due to the lack of any competitive theory. I merely propose an evaluation of two distinct hypotheses by the usual scientific criterion: The hypothesis less consistent with available data should be rejected.
Quote:
Looking at a subset of the listed traits, however, it's clear that the other parent in this hypothetical cross that produced the first human would be an intelligent animal with a protrusive, cartilaginous nose, a thick layer of subcutaneous fat, short digits, and a naked skin. It would be terrestrial, not arboreal, and adaptable to a wide range of foods and environments. These traits may bring a particular creature to mind. In fact, a particular nonprimate does have, not only each of the few traits just mentioned, but every one of the many traits listed in th sidebar. Ask yourself: Is it likely that an animal unrelated to humans would possess so many of the "human" characteristics that distinguish us from primates? That is, could it be a mere coincidence? It's only my opinion, but I don't think so.
http://www.macroevolution.net/human-ori ... waAXTnWHlLQuote:
In August 2011 a sow in the remote Central American village (Santa Cruz El Chol, Baja Verapaz, Guatemala) produced another such "piglet" with a humanlike head. Its appearance, rather similar to the Chinese "monkey-pig" shown above, was recorded in television news reports
Macroevolution
Possible primate/ pig hybrid.
[youtube]http://www.youtube.com/watch?v=QlCj8lwgyes[/youtube]