Just so everyone here is clear, this is supposed to be impossible, per the biological definition of species.
However, we have numerous examples of hybridization in the animal world (a more popular example is the cabbit - cat+rabbit), and unfortunately, quite a few examples of human hybridization. This page has reported hybrids sorted by biological distance. http://www.macroevolution.net/mammalian-hybrids-articles.html
Of course, the ultimate conclusion of this research is that we are, ourselves, hybrids of a certain chimpanzee and a certain pig (which elegantly explains a number of problems, including our extreme similarity of our tissues to those of pigs). Distant hybrids require backcrossing to remain extant, and it appears the dark races are backcrossed with more chimp, and the lighter races backcrossed with more pig. http://www.macroevolution.net/human-origins.html
Apparently, our vasculature, including that of the cranium, our kidneys, teeth arrangement and diet, the entirely of our mating process (including both foreplay and 'sex for fun' - chimps don't do this), the entirely of the female vagina (including labia majora, uterine structure, etc), and, of course, eye colors that aren't brown are apparently all lifted wholesale from the pig.
aleleopathic 4 points 2.9 years ago
Just so everyone here is clear, this is supposed to be impossible, per the biological definition of species.
However, we have numerous examples of hybridization in the animal world (a more popular example is the cabbit - cat+rabbit), and unfortunately, quite a few examples of human hybridization. This page has reported hybrids sorted by biological distance. http://www.macroevolution.net/mammalian-hybrids-articles.html
This page dedicated to just cabbit hybrids: http://www.macroevolution.net/cat-rabbit-hybrids.html
Of course, the ultimate conclusion of this research is that we are, ourselves, hybrids of a certain chimpanzee and a certain pig (which elegantly explains a number of problems, including our extreme similarity of our tissues to those of pigs). Distant hybrids require backcrossing to remain extant, and it appears the dark races are backcrossed with more chimp, and the lighter races backcrossed with more pig. http://www.macroevolution.net/human-origins.html
Apparently, our vasculature, including that of the cranium, our kidneys, teeth arrangement and diet, the entirely of our mating process (including both foreplay and 'sex for fun' - chimps don't do this), the entirely of the female vagina (including labia majora, uterine structure, etc), and, of course, eye colors that aren't brown are apparently all lifted wholesale from the pig.