|
|
|
|
|
|
by saalweachter
4454 days ago
|
|
|
Basically, no. While goats and sheep diverged 8 million years ago, humans/chimps and pigs diverged 80 million years ago. The last time a proto-chimp got with a proto-pig, the T-Rex hadn't evolved yet. While goats and sheep have a difference of 6 chromosomes, chimps and pigs have a difference of 10. McCarthy, despite being a geneticist, makes his absurd claim without even discussing the genetic difficulties. What little similarity there is between humans and pigs is simply a case of convergent evolution. |
|
|
Another argument was that the morphological distance, or genetic differences besides chromosome number, are just too great. Most of us are familiar with the platypus. A paper published in Nature a few years ago demonstrated that the platypus genome contains both bird and mammal chromosomes, and therefore that the vastly different bird and mammal sex chromosome systems have been successfully bridged by this creature. This example is not offered as any kind of proof. But it does suggest that sometime, long ago, a cross occurred that would have been even more distant than that between a chimpanzee and a pig – one between a otter-like mammal and a duck-like bird. And if such was the case, the hybrids from the cross must have been able to produce offspring (otherwise they would have died out, and the platypus would not exist today).
http://phys.org/news/2013-07-human-hybrids-closer-theory-evi...