Originally posted by sonhouse
The original story I pushed here had a lot of flack and positive feedback also.
This is still total bunk. It's about the same level as the worry about LHC destroying the world. All the examples of hybrids are from animals within the same tribe (the goat-sheep hybrid is the only example of an animal hybrid I know of not in the same genus). The division is:
mammalia -> Boreoeutheria -> Euarchontoglires -> Euarchonta -> Glires -> primates -> apes -> us
mammalia -> Boreoeutheria -> Laurasiatheria -> Cetartiodactyla -> Artiodactyla -> suina -> pigs
There is simply too much distance. If it was that easy to produce hybrids we'd be up to our ears in mad crosses. Aside from anything else bestiality has been forbidden since the most ancient law codes, which means it happened enough that they legislated against it, so if a hybridization was possible between any primate and any ruminant it would have happened by now.
This is from the code of the Nesilim (The oldest surviving law code and a bit of a hoot):
187. If a man have intercourse with a cow, it is a capital crime, he shall die. They shall lead him to the king's hall. But the king may kill him, the king may grant him his life. But he shall not approach the king. [I should think not!]
199. If anyone have intercourse with a pig or a dog, he shall die. If a man have intercourse with a horse or a mule, there is no punishment [!!!]. But he shall not approach the king, and shall not become a priest. If an ox spring upon a man for intercourse, the ox shall die but the man shall not die. One sheep shall be fetched as a substitute for the man, and they shall kill it. If a pig spring upon a man for intercourse, there is no punishment. If any man have intercourse with a foreign woman and pick up this one, now that one, there is no punishment.
I asked a doctor who sometimes turns up on Tuesdays for chess, and he asked a friend who works on Zoonosis for the Ministry of Health, his opinion was that horses were the most dangerous from an infection point of view...
McCarthy's refused to make a hybrid on ethical grounds, which is ridiculous given mouse/human crosses are used to test fertility. You just stop it growing after a month or so. He needs to show a chimp/pig cross could 1) form a zygote, which isn't certain, the sperm may not bind, and 2) start dividing and get past the stage where the notochord forms (there's some really tricky moments before that). I bet 2 can't happen, the embryo would just terminate.
Fundamentally though, the burden of proof is on him as he is making the claim, it's not up to the rest of the scientific community to prove him wrong until he's come up with some real evidence for this instead of a list of anatomical similarities.