I wonder, does mammalian also include rabbits? They are mammals but relatively uncommon as food compared to cows (and sheep?). I only ask this since rabbits are the only mammal that I eat. Although even then I only have them if I'm in a restaurant and there's a rabbit dish that sounds appealing, which is well under once per year. I've never cooked a rabbit and wouldn't even know what grocery store (if any) around here might sell them.