Eugene McCarthy
If you are looking for Eugene McCarthy the Congressman, you are on the wrong wiki.
Eugene McCarthy is an American geneticist with a particular focus on hybridization. Perhaps best known for his controversial treatise on human origins, called On the Origins of New Life Forms: A New Theory (or, as Pharyngula has called it, the "MFAP hypothesis" of human origins), he is also notable for being one of very few pseudoscientists to have legitimate work published in the field he hopes to revolutionize. McCarthy's less unorthodox work includes a book on hybrid birds that he considers his magnum opus, and a novel loosely based on his experienced difficulty in getting his craziness published.
[edit] MFAP theory of human origins
Despite the fact that McCarthy holds a PhD in genetics, some of his theories regarding hybridization are so crank-ish that even an average person on the street would be able to poke holes in them. Most famously, McCarthy believes that human beings are descended from a fortuitous intermingling between pig and ape genes. Rather than claiming that the genome supports this idea, McCarthy points to morphological similarities to make his case. While there might be morphological similarities, more competent evolutionary biologists have long ago come to the conclusion that this does not necessarily imply a relational connection between two species. To his credit, McCarthy does follow this through to its logical conclusion in at least one other area, and believes that echidnas and platypus are the descendants of a cross between birds and mammals.
Despite some criticism from individual creationists, major creation ministries have not taken to using this as an example of an evolutionary failure, possibly because even other pseudoscientists can see that McCarthy's views are far from mainstream.