Contrary to popular belief sheep and goats CAN in fact crossbreed just like in this article here. Due to the mismatched chromosomes (Goats with 60 and sheep with only 54) most of the offspring will stillborn, and those who live are generally sterile and can not therefore reproduce. Many “Geep” resemble hair sheep while others have patches of hair in one place and wool in the others. A hair sheep and goat cross will look nearly identical to either a goat or the hair sheep depending on the species of the father.
Whims of Nature?