I used to know some people, who worked in Hawai'i, who worked on the jaw closing muscle of the lobster. Just the jaw closing muscle. The rest of the lobsters was not utilised and so could be utilised for other purposes since the lobsters did not survive the process.
During my PhD we had a Chinese guy half in the lab who was doing a project on deer velvet (the skin from immature antlers, thought to be an aphrodisiac in China). On hearing that the postdoc had been married for some years without offspring he came in with a bag of sliced young antler with instructions to stir fry it as a 'tonic'. Since I was married with kids I didn't get any ;-(
Sometimes working on mouse muscles has it's drawbacks. I would be okay eating rat, there's enough eating on a rat. But mice are not worth bothering with. Less meat on the hind limbs than a frog leg.