Interbreeding with Animals

The ability to interbreed is the final word on whether two species are actually the same species or not. If they consistently have healthy and fertile offspring they are the same species. If the consistently have healthy offspring that are usually infertile, they are a different species but closely related. I don't think that such a determination can otherwise be made without extremely detailed DNA matching.
 
The ability to interbreed is the final word on whether two species are actually the same species or not. If they consistently have healthy and fertile offspring they are the same species. If the consistently have healthy offspring that are usually infertile, they are a different species but closely related. I don't think that such a determination can otherwise be made without extremely detailed DNA matching.

No, this is no longer the accepted definition. And hybrids can sometimes change from being sterile to non-sterile through polyploidy. Today we define a species as two separate populations that do not normally interbreed in nature. You see the difference here? They are ecologically isolated but yet if placed in an artificial environment, as is the case with the two distinct species of lions and tigers, they can still produce viable fertile hybrid offspring.
 
http://en.wikipedia.org/wiki/Hominidae

In addition to the Tourmai fossil, US genome experts believe that the species associated with the chimpanzees and proto-humans split interbred over a long period of time, swapping genes, before making a final separation. A paper, whose authors include David Reich and Eric Lander (Harvard and the Massachusetts Institute of Technology (MIT)), was published in journal Nature in May 2006.

All species somewhere should have the ability to interbreed otherwise the evolution proces would be extremly difficult. But you don't wreally hear much of hybrid homidae

Monkey's on the other hand: link
gibbon+ Siamangs= Siabon
Rhesus Macaque+Hamadryas Baboon=Rheboon

If humans neanderthals were to breed you would proberly get something like when a sumatran orangutans and bornean orangutans mate and that's, sterile or poorly fertile hybrids. Hybrid orangutans are genetically weaker, with lower survival rates than pure animals.
 
No. ... Humans cannot produce offspring from any other primate species.

That's a pretty bold call. I would have thought that humans and chimpanzees were at least as close genetically and horses and donkeys. I suspect that the notion hasn't been properly tested, and if it has, it hasn't been published (no surprise!)

Getting ethical clearance would be pretty impossible. Even if it was only to test if human and chimpanzee haploids would combine in vitro to make a zygote.
 
Who is this "they", that doesn't have a code of ethics?
 
Ha!

"Hey, do you have funding for those little fuckers?"
 
If a human were able to mate with a chimp to produce an offspring, what would it look like? Would it look like Eddy Munster, or a pygmy African, or a monkey with a moustache and straight legs in a suit, would it look like the Geico caveman, thoughts?
 
stalin was hoping for a "I want a new invincible human being, insensitive to pain, resistant and indifferent about the quality of food they eat."
 
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