Stream of consciousness rationale: The important part for answering this question is: Baby back ribs (also back ribs or loin ribs) are taken from the top of the rib cage between the spine and the spare ribs, below the loin muscle.
The question and answer pair are described below.
Q: Baby back ribs (also back ribs or loin ribs) are taken from the top of the rib cage between the spine and the spare ribs, below the loin muscle. They have meat between the bones and on top of the bones, and are shorter, curved, and sometimes meatier than spare ribs. The rack is shorter at one end, due to the natural tapering of a pig's rib cage. The shortest bones are typically only about 3 in (7.6 cm) and the longest is usually about 6 in (15 cm), depending on the size of the hog. A pig side has 15 to 16 ribs (depending on the breed), but usually two or three are left on the shoulder when it is separated from the loin. So, a rack of back ribs contains a minimum of eight ribs (some may be trimmed if damaged), but can include up to 13 ribs, depending on how it has been prepared by the butcher. A typical commercial rack has 10 -- 13 bones. If fewer than 10 bones are present, butchers call them "cheater racks".

Answer this question based on the passage: where are baby back ribs located on a pig?
A: the top of the rib cage between the spine and the spare ribs , below the loin muscle