Y'all should read this book, lots of self-survival cannibalism. So disturbing But I guess if I really, really had to... (but only if I knew there was actually hope of getting rescued, otherwise I'd just let us all die)
Whats the difference between eating your family and eating chicket/beef?
MORALS AND ETHICS, thats all. Biologically, chemically its almost the same.
Not all meat are comestible. Many carnivorous animals don't cannibalize their own kind. They don't even eat other carnivores as a carnivore's meat is not palatable and might contain parasites. The meat that is most suitable and safe for food is that of herbivorous animals.