[MEGoody]

The answer is possibly 'yes' to the interbreeding but 'no' to the hybrid, according to the authors of a new study that is already making waves among anthropologists.

As I understand it, Neanderthals were different enough from modern man genetically (and it wouldn't take much) that reproduction between the two would not be possible.

[Lucius Cornelius Sulla]

I believe that Neanderthals and Homo Sapiens are more closely related than horses and donkeys, and they can interbreed, with sterile offspring. Lions and Tigers are at least that far apart, and they can interbreed.