So, you've been carefully avoiding eating meat for years, in order to help reduce the number of animals that die for human gain? Well, there's others working towards the opposite goal, taking the first steps in developing carnivorous robots that eat flies and slugs for energy. Cool technology, and I guess in the quest to make robots more practical and capable, there is a general trend towards emulating the human body, which seems to work relatively well after hundreds of thousands of years of tiny incremental improvements. But if I was a living creature who finds myself being eaten, as much as I'd be opposed to the idea, I'd at least rather it be for the purpose of nourishing another animal than to provide power for some robot to take one more ponderous footstep.