Insects also have muscles in certain locations throughout their bodies. You’ll find the exact same structures in similarly structured insects, just on a smaller scale. Honestly I have no idea what you’re talking about because they both have muscles and both have open circulatory systems, both will solidify into “meat” when cooked. I’m not sure what you’re suggesting meaningfully distinguishes them here other than their taxonomic classifications and their size.
I’m still waiting for somebody to give me a symmetry breaker between AI training on existing media and humans creating media from what they’ve seen, such that one is theft and the other is not.