Yes, they can and the result is geep. I'm unsure as to whether they are sterile or not, but have seen a perfectly healthy animal arise.
I disagree. An embryo may begin, but the 2 are genetically...
It is a sheep goat-hybrid. Most offspring are stillborn because sheep and goats belong to different genera and have a different number of chromosome pairs.
No Cow, Sheep, Goat hybrid has ever been created. It is unlikely that such a creature could ever exist, due to the high genetic incompatibility between these animals.
Personally i thought a goat was just a goat and a sheep a sheep. I believe that though they have many breeds of the other that look alike, they are of different species. :P