Not going to dig up a cite right now, but I'm pretty sure that females of one species have successfully gestated embryos of another species, if they are reasonably closely related.
The distinction being that in surrogacy, there is no requirement to mix DNA to make viable offspring. There are likely immunological compatibility concerns at the placental boundary.
The distinction being that in surrogacy, there is no requirement to mix DNA to make viable offspring. There are likely immunological compatibility concerns at the placental boundary.
Ok, here's the cite http://en.m.wikipedia.org/wiki/Interspecific_pregnancy