lamb ribs

I don't know much about the anatomical difference between a pig and a sheep, but has anyone else wonder why when you buy pork with rib bones it is just called pork ribs, but the similar cut from a lamb is called lamb breast?  In any case it is good eating, this recipe appeared in the Times last week was quite enticing that I decided to make it on the weekend.

Instead of making a yogurt sauce though, I made a kale salad with a yogurt-lemon dressing.  Not only was that pretty good, it made me feel a bit better  eating the fatty lamb 'ribs'.