(Not to mention how a pregnant goat could possibly fit a baby or two in with all those stomachs.) It was clearly time to Ask the iPhone. Turns out “goats have four stomachs” is sloppy shorthand for “goats have one very large stomach split into four compartments”: the rumen, the reticulum, the omasum, and the abomasum. There are lots of explanations of how goat stomachs work on the web, but I find I’m rather partial to the one provided by the New York State 4-H.